Heaters (Submersible)

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Aqueon Mini Heater
Aqueon Mini Heater for Desktop Aquariums (AU06193)

Aqueon Mini Heater is a fully submersible, shatterproof heater ideal for smaller aquariums up to five gallons in size. This mini aquarium heater features a thermal safety fuse that shuts off the heater when it dries out or looks like it may overheat.

  • Fully submersible aquarium heater
  • Shatterproof with a fuse that eliminates overheating
  • Ideal for desktop aquariums up to five gallons

This mini heater never raises the temperature above 80 degrees and keeps the temperature at an ideal range for tropical fish. Ideal for desktop aquariums.

Aqueon Mini Heater for Desktop Aquariums
$34.08
Aqueon Submersible Aquarium Heater
Aqueon Submersible Aquarium Heater ('15905000291)

Aqueon Submersible Aquarium Heaters maintain precision temperature control with a digital thermostat that provides more accurate readings (+/-1°F) than traditional analog thermostats. The heater unit features an auto-shut off feature for safety, and extremely durable thermal shatter-resistant glass construction.

  • Compact size with shatter resistant construction
  • Electronic thermostat provides accurate and reliable heating
  • Precise temperature control to +/-1°F
  • Auto-safety shut off and overheat protection
  • For fresh or saltwater aquariums

Includes suction cup clamps for easy mounting. May be installed vertically or horizontally. Indicator lamp shows when heater is operational.

Specifications:

  • Lifetime warranty
  • 3/4" glass tube diameter
  • UL listed
Aqueon Submersible Aquarium Heater - 50 Watt
$44.76
Aqueon Submersible Aquarium Heater
Aqueon Submersible Aquarium Heater ('15905000314)

Aqueon Submersible Aquarium Heaters maintain precision temperature control with a digital thermostat that provides more accurate readings (+/-1°F) than traditional analog thermostats. The heater unit features an auto-shut off feature for safety, and extremely durable thermal shatter-resistant glass construction.

  • Compact size with shatter resistant construction
  • Electronic thermostat provides accurate and reliable heating
  • Precise temperature control to +/-1°F
  • Auto-safety shut off and overheat protection
  • For fresh or saltwater aquariums

Includes suction cup clamps for easy mounting. May be installed vertically or horizontally. Indicator lamp shows when heater is operational.

Specifications:

  • Lifetime warranty
  • 3/4" glass tube diameter
  • UL listed
Aqueon Submersible Aquarium Heater - 150 Watt
$55.58
Aqueon Submersible Aquarium Heater
Aqueon Submersible Aquarium Heater ('15905000321)

Aqueon Submersible Aquarium Heaters maintain precision temperature control with a digital thermostat that provides more accurate readings (+/-1°F) than traditional analog thermostats. The heater unit features an auto-shut off feature for safety, and extremely durable thermal shatter-resistant glass construction.

  • Compact size with shatter resistant construction
  • Electronic thermostat provides accurate and reliable heating
  • Precise temperature control to +/-1°F
  • Auto-safety shut off and overheat protection
  • For fresh or saltwater aquariums

Includes suction cup clamps for easy mounting. May be installed vertically or horizontally. Indicator lamp shows when heater is operational.

Specifications:

  • Lifetime warranty
  • 3/4" glass tube diameter
  • UL listed
Aqueon Submersible Aquarium Heater - 200 Watt
$58.38
Aqueon Submersible Aquarium Heater
Aqueon Submersible Aquarium Heater ('15905000338)

Aqueon Submersible Aquarium Heaters maintain precision temperature control with a digital thermostat that provides more accurate readings (+/-1°F) than traditional analog thermostats. The heater unit features an auto-shut off feature for safety, and extremely durable thermal shatter-resistant glass construction.

  • Compact size with shatter resistant construction
  • Electronic thermostat provides accurate and reliable heating
  • Precise temperature control to +/-1°F
  • Auto-safety shut off and overheat protection
  • For fresh or saltwater aquariums

Includes suction cup clamps for easy mounting. May be installed vertically or horizontally. Indicator lamp shows when heater is operational.

Specifications:

  • Lifetime warranty
  • 3/4" glass tube diameter
  • UL listed
Aqueon Submersible Aquarium Heater - 300 Watt
$61.44
Hydor ETH External Thermal Heater (In Line)
Hydor ETH External Thermal Heater In Line Heater (HY00019)

Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8" flexible hosing. No danger of damage if unit is run dry for short period as the ETH will switch itself off before overheating.

  • Hydor ETH - External Thermal Heater fits in line with your filter tubing
  • Reliable, Simple to Use, Extremely Accurate
  • Suitable for Freshwater and Saltwater aquariums

Ideal for tropical fish breeding situations. Temperature control is adjustable between 66-90 deg F. Includes 2 Year Warranty from date of purchase.

Heats with high efficiency and designed to avoid temperature variations caused by poor water circulation. The ETH external In-Line heater uses the advanced PTC system, which is a special polymer sheet, silk-screened with heating ink (like your cars windshield defroster) instead of metal coils.

This state-of-the-art system allows the unit to be left running without water for a short time with no damage. For indoor, in-line use only, the ETH external heater has an adjustable heating control, and a hanging hook for easy placement outside your aquarium. Requires tubing.

Specifications:
300 Watt
5/8" ID
53-80 Gallon Tanks

Hydor ETH External Thermal Heater In Line Heater
$117.48
Hydor Slim Heater for Micro Tanks & Mini Aquariums
Hydor Slim Heater for Micro Tanks and Mini Aquariums (HY00927)

The Hydor slim heater is a submersible aquarium heater for micro tanks and mini aquariums 2-5 Gallons. Ideal for use in mini aquariums for fish that require heated water for a long, comfortable and healthy life.

  • Submersible heater for micro tanks and mini aquariums
  • Plug-and-play installation
  • Shock-proof heater provides natural warmth

This safe, UL-listed aquarium heater draws only 7.5 watts and has a slim design to suit small, 2-5 gallon fish tanks. Use to heat your tank 5-10 degrees hotter then room temperature and keep your fish and plants comfortable and healthy.

Hydor Slim Heater for Micro Tanks and Mini Aquariums
$20.84
Hydor Theo Heater - Submersible Aquarium Heater
Hydor Submersible Aquarium Heater (HY00320)

The Hydor Aquarium Heater is a submersible heater made with the exclusive PTC (Positive Thermal Coefficient) technology. This Hydor aquarium heater provides no thermal shock, is submersible, and engineered shatterproof glass designed to resist breakage in most normal aquarium situations.

  • Ideal for Freshwater or Saltwater Aquariums
  • Heater can be positioned vertical or horizontal
  • The Hydor heater cord is approximately 6 feet long

The Hydor Aquarium Heater has all the necessary features for safe and precise temperature maintenance of water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product.

Specifications:
25 Watt: 2-7 Gallons (6.9" Long)
300 Watt: 53-80 Gallons (15.5" Long)
400 Watt: 80-105 Gallons (15.5" Long)

Hydor Submersible Aquarium Heater
$71.84
Marina Betta Submersible Aquarium Heater
Marina Betta Submersible Aquarium Heater ('015561111829)

Marina Betta Heater is an automatic, submersible heater that creates ideal water conditions for bettas to thrive in. The exterior is made of durable polymer, which is more resilient than traditional glass sleeve heaters. The heater is designed to reach and maintain a set temperatureno manual adjustments required. It has a red indicator light that illuminates when the heater is working. It comes with a suction cup, so you can easily install it against the aquarium window.

  • Automatic, Submersible Aquarium Heater
  • Creates Ideal Conditions for Bettas to Thrive In
  • Made of Durable Polymer, Tougher Than Glass
  • Automatically Reaches Set Temperature
  • For Aquariums up to 1.5 Gallons
Marina Betta Submersible Aquarium Heater - 8 watt
$22.92
Marina Mini Submersile Aquarium Heater
Marina Mini Submersile Aquarium Heater ('15561112314)

Small yet powerful, the mini 50-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 10 gallon aquariums. The heater includes many practical features for easy use, safety and convenience, including an easy-to-access temperature set dial, on/off pilot light indicator, and a bumper guard for fish safety. Made of durable high-impact glass, its built to last under normal aquatic conditions.

  • Easy-To-Access Temperature Set Dial
  • Fresh & Saltwater
  • Water Proof Sealing
  • Bumper Guard for Fish Safety
  • Heat range 68F to 82F (20C to 28C)
Marina Mini Submersile Aquarium Heater - 50 Watts
$33.38
Marina Submersible Aquarium Heater
Marina Submersible Aquarium Heater ('15561112369)

Marina submersible aquarium heater is designed to provide a reliable heating solution for both salt and freshwater aquariums up to 30 gallons. Easy to use, the heater has numerous features making it safe and convenient even for the first time users. It gives you easy access to temperature set dial, on/off pilot light indicator and a bumper guard. It is made of high-quality, durable glass made to last under normal aquatic conditions.

  • Works excellently for both fresh and saltwater aquariums
  • Comes with all essential features
  • Easy to install includes bracket with suction cups
  • Water proof sealing

This submersible aquarium heater from Marina ensures your water tank does not get too cool in winters.

Marina Submersible Aquarium Heater - 300 watt (10.5"L)
$53.70
Marina Submersible Aquarium Heater
Marina Submersible Aquarium Heater ('15561112352)

Marina submersible aquarium heater is designed to provide a reliable heating solution for both salt and freshwater aquariums up to 30 gallons. Easy to use, the heater has numerous features making it safe and convenient even for the first time users. It gives you easy access to temperature set dial, on/off pilot light indicator and a bumper guard. It is made of high-quality, durable glass made to last under normal aquatic conditions.

  • Works excellently for both fresh and saltwater aquariums
  • Comes with all essential features
  • Easy to install includes bracket with suction cups
  • Water proof sealing

This submersible aquarium heater from Marina ensures your water tank does not get too cool in winters.

Marina Submersible Aquarium Heater - 200 watt (10.5"L)
$49.74
Marina Submersible Aquarium Heater
Marina Submersible Aquarium Heater ('15561112345)

Marina submersible aquarium heater is designed to provide a reliable heating solution for both salt and freshwater aquariums up to 30 gallons. Easy to use, the heater has numerous features making it safe and convenient even for the first time users. It gives you easy access to temperature set dial, on/off pilot light indicator and a bumper guard. It is made of high-quality, durable glass made to last under normal aquatic conditions.

  • Works excellently for both fresh and saltwater aquariums
  • Comes with all essential features
  • Easy to install includes bracket with suction cups
  • Water proof sealing

This submersible aquarium heater from Marina ensures your water tank does not get too cool in winters.

Marina Submersible Aquarium Heater - 150 watt (10.5"L)
$49.74
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906549)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 300 Watt - 15" Long - (Aquariums up to 80 Gallons)
$61.74
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906556)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 400 Watt - 18" Long - (Aquariums up to 125 Gallons)
$81.58
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906501)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 100 Watt - 10.25" Long - (Aquariums up to 29 Gallons)
$42.86
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906532)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 250 Watt - 14.5" Long - (Aquariums up to 70 Gallons)
$59.16
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906525)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 200 Watt - 13.5" Long - (Aqauriums up to 55 Gallons)
$57.28
Marineland Precision Submersible Aquarium Heater
Marineland Precision Submersible Aquarium Heater ('047431906518)

The Marineland Precision Submersible Aquarium Heater offers safe, reliable, highly accurate heating for your fresh or saltwater aquarium. A built-in thermal safety switch accurately regulates the temperature to within 1 degree. The switch also automatically turns the heater off if temperatures exceed internal parameters, and turns it back on when the tank temperature returns to normal. Top and side view temperature scales allow easy viewing from all angles.

  • Maintains precise aquarium temperatures to within 1°F accuracy
  • Thermal safety switch turns off automatically to prevent heater failure
  • Suitable for fresh and saltwater aquariums

The Marineland Precision Heater is extremely user-friendly, with an abundance of features to enhance convenience. The combination of a top-view scale and high visibility sliding scale provides dual confirmation of all temperature adjustments. The "Click Set" control knob clicks for every degree you change the temperature for easy, precise heating. This heater is built to last, with an advanced mesh heating element surrounding the mica core for enhanced heat transfer and long lasting, reliable performance. UL listed.

Included with the Precision Heater is an advanced mounting bracket that securely attaches to glass, providing 3 window positions that let you view the temperature display from multiple angles.

Specifications:
100 Watt: 10.25" Long; Aquariums up to 29 Gallons
150 Watt: 12" Long; Aquariums up to 40 Gallons
200 Watt: 13.5" Long; Aqauriums up to 55 Gallons
250 Watt: 14.5" Long; Aquariums up to 70 Gallons
300 Watt: 15" Long; Aquariums up to 80 Gallons
400 Watt: 18" Long; Aquariums up to 125 Gallons

Directions:

  • Attach the included Suction Cups to the Double Suction Mounting Bracket. Slide Bracket over heater.
  • Place heater in aquarium by firmly pressing suction ends against wall surface. The Three Position Viewing Window allows you to view the temperature setting from three possible angles - simply turn the heater until it locks into the best viewing position. NOTE: Choose an algae-free location with adequate circulation. This ensures even heat distribution and optimum operation. No part of the heater housing should contact aquarium gravel, rocks, or decorations.
  • Wait at least 15 minutes before plugging in your heater. The ON/Off Indicator Light will confirm that the power is on. NOTE: Before plugging in heater, create a "drip loop" to prevent water from reaching receptacle.
  • Select the desired temperature. Turn the "Click Set" Temp Select Dial until the point of the red line on the thermometer scale reaches the correct setting. Most tropical fish like 78°-81°F water.

It is recommended to use a tank cover to prevent water temperature variances or heat loss. Both can impair heater performances, creating a hazardous environment for the fish.

Marineland Precision Submersible Aquarium Heater - 150 Watt - 12" Long - (Aquariums up to 40 Gallons)
$55.00
Penn Plax Cascade Submersible Heat Aquarium Heater
Penn Plax Cascade Submersible Heat Aquarium Heater ('30172034701)

The Cascade Submersible Heater is an economical alternative in aquarium heating. The Cascade Submersible Heater automatically sets and maintains to your desired temperature, and is accurate to one degree.

  • Automatically sets and maintains your desired temperature
  • Accurate to 1 degree
  • Fully submersible

The Cascade Submersible Heater contains easy view on/off light, dual suction cups with mounting clip and visible and accurate temperature setting scale. The Cascade Submersible Heater is constructed of heavy duty and shock resistant glass.

The Cascade Submersible Heater is a top quality heating element with superior insulation and heat distribution, perfect for fresh and salt water aquariums.

Penn Plax Cascade Submersible Heat Aquarium Heater - 150 Watts - 10" Long (30 Gallons)
$44.02
Tetra Submersible Heater
Tetra Submersible Heater ('046798264460)

Tetra HT-Series Submersible Heaters are created especially for ease of use in your aquarium. An electronic thermostat automatically adjusts the heat output to keep the water at a constant 78 degrees F, so all you have to do is plug it in!

  • Easy to control with no adjustment required
  • Fully submersible and shock resistant
  • Maintains constant healthy water temperature
  • 2-year manufacturer warranty

An electronic thermostat automatically maintains water temperature at 78 degrees ( /-2) F/25 degrees ( /-1) C, and prevents overheating to extend the life of the heater. No adjustments are necessary. The indicator light lets you know when the water is being heated (red light) and when it is at the proper temperature (green light), while precision crystals improve heat distribution and transfer. The strong glass tube is heat and shock resistant.

Specifications:
HT10: 50 Watt (2-10 Gallons)
HT30: 100 Watt (10-30 Gallons)
HT55: 200 Watt (40-55 Gallons)

Tetra Submersible Heater - HT30 Heater - 100 Watt - (Aquariums 10-30 Gallons)
$26.42
Tetra Submersible Heater
Tetra Submersible Heater ('046798264477)

Tetra HT-Series Submersible Heaters are created especially for ease of use in your aquarium. An electronic thermostat automatically adjusts the heat output to keep the water at a constant 78 degrees F, so all you have to do is plug it in!

  • Easy to control with no adjustment required
  • Fully submersible and shock resistant
  • Maintains constant healthy water temperature
  • 2-year manufacturer warranty

An electronic thermostat automatically maintains water temperature at 78 degrees ( /-2) F/25 degrees ( /-1) C, and prevents overheating to extend the life of the heater. No adjustments are necessary. The indicator light lets you know when the water is being heated (red light) and when it is at the proper temperature (green light), while precision crystals improve heat distribution and transfer. The strong glass tube is heat and shock resistant.

Specifications:
HT10: 50 Watt (2-10 Gallons)
HT30: 100 Watt (10-30 Gallons)
HT55: 200 Watt (40-55 Gallons)

Tetra Submersible Heater - HT10 Heater - 50 Watt - (Aquariums 2-10 Gallons)
$22.52
Tetra Submersible Heater
Tetra Submersible Heater ('046798264637)

Tetra HT-Series Submersible Heaters are created especially for ease of use in your aquarium. An electronic thermostat automatically adjusts the heat output to keep the water at a constant 78 degrees F, so all you have to do is plug it in!

  • Easy to control with no adjustment required
  • Fully submersible and shock resistant
  • Maintains constant healthy water temperature
  • 2-year manufacturer warranty

An electronic thermostat automatically maintains water temperature at 78 degrees ( /-2) F/25 degrees ( /-1) C, and prevents overheating to extend the life of the heater. No adjustments are necessary. The indicator light lets you know when the water is being heated (red light) and when it is at the proper temperature (green light), while precision crystals improve heat distribution and transfer. The strong glass tube is heat and shock resistant.

Specifications:
HT10: 50 Watt (2-10 Gallons)
HT30: 100 Watt (10-30 Gallons)
HT55: 200 Watt (40-55 Gallons)

Tetra Submersible Heater - HT55 Heater - 200 Watt - (Aquariums 40-55 Gallons)
$38.38
Via Aqua Quartz Heater
Via Aqua Quartz Heater ('006903733298)

Via Aqua Quartz Heaters are the new and improved version of glass heaters, featuring high quality, submersible quartz glass with a visible temperature readout. Heaters are easy to install - just use the suction cups to secure your heater in the desired area.

  • Fully submersible aquarium heaters
  • High quality, break resistant quartz glass construction
  • Visible temperature setting for accurate reading

Features suction cups to secure to your tank. Compatible with salt and freshwater tanks. Temperature range is adjustable from 68°-92°F.

Specifications:
50 Watt: Aquariums up to 13 Gallons - (8.2" x 1.1")
100 Watt: Aquariums up to 25 Gallons - (10.7" x 1.1")
200 Watt: Aquariums up to 50 Gallons - (12.5" x 1.1")
300 Watt: Aquariums up to 80 Gallons - (14.8" x 1.1")

Via Aqua Quartz Heater - 100 Watts - 25 Gallon Tank
$34.56
Via Aqua Quartz Heater
Via Aqua Quartz Heater ('006903733304)

Via Aqua Quartz Heaters are the new and improved version of glass heaters, featuring high quality, submersible quartz glass with a visible temperature readout. Heaters are easy to install - just use the suction cups to secure your heater in the desired area.

  • Fully submersible aquarium heaters
  • High quality, break resistant quartz glass construction
  • Visible temperature setting for accurate reading

Features suction cups to secure to your tank. Compatible with salt and freshwater tanks. Temperature range is adjustable from 68°-92°F.

Specifications:
50 Watt: Aquariums up to 13 Gallons - (8.2" x 1.1")
100 Watt: Aquariums up to 25 Gallons - (10.7" x 1.1")
200 Watt: Aquariums up to 50 Gallons - (12.5" x 1.1")
300 Watt: Aquariums up to 80 Gallons - (14.8" x 1.1")

Via Aqua Quartz Heater - 200 Watts - 50 Gallon Tank
$35.80
Via Aqua Quartz Heater
Via Aqua Quartz Heater ('006903733311)

Via Aqua Quartz Heaters are the new and improved version of glass heaters, featuring high quality, submersible quartz glass with a visible temperature readout. Heaters are easy to install - just use the suction cups to secure your heater in the desired area.

  • Fully submersible aquarium heaters
  • High quality, break resistant quartz glass construction
  • Visible temperature setting for accurate reading

Features suction cups to secure to your tank. Compatible with salt and freshwater tanks. Temperature range is adjustable from 68°-92°F.

Specifications:
50 Watt: Aquariums up to 13 Gallons - (8.2" x 1.1")
100 Watt: Aquariums up to 25 Gallons - (10.7" x 1.1")
200 Watt: Aquariums up to 50 Gallons - (12.5" x 1.1")
300 Watt: Aquariums up to 80 Gallons - (14.8" x 1.1")

Via Aqua Quartz Heater - 300 Watts - 80 Gallon Tank
$38.52
Via Aqua Titanium Heater
Via Aqua Titanium Heater ('006903735568)

Via Aqua Titanium Aquarium Heaters feature a new and improved design to make temperature control easier than ever. The durable, lightweight titanium heating tube connects to an easy-to-read LCD controller, featuring built-in memory, automatic shutoff, and a range of 64-88 degrees (F).

  • Titanium heating tube with easy-to-read LCD controller
  • Built-in memory of last set temperature
  • Auto shut-off at temperatures over 90 keeps fish safe
  • Temperature range of 64-88 degrees (F)
  • For use in salt and freshwater aquariums

The built-in memory feature makes it easy to maintain a consistent temperature. Upon each connection of power, the heater will automatically return to the last temperature setting.

Specifications:
100 Watt:

  • 8" Long
  • Up to 25 Gallons

200 Watt:

  • 9.5" Long
  • Up to 50 Gallons

300 Watt:

  • 10.5" Long
  • Up to 80 Gallons

500 Watt:

  • 15.5" Long
  • Up to 130 Gallons
Via Aqua Titanium Heater - 100 Watt - (25 Gallons)
$82.14
Via Aqua Titanium Heater
Via Aqua Titanium Heater ('6903735575)

Via Aqua Titanium Aquarium Heaters feature a new and improved design to make temperature control easier than ever. The durable, lightweight titanium heating tube connects to an easy-to-read LCD controller, featuring built-in memory, automatic shutoff, and a range of 64-88 degrees (F).

  • Titanium heating tube with easy-to-read LCD controller
  • Built-in memory of last set temperature
  • Auto shut-off at temperatures over 90 keeps fish safe
  • Temperature range of 64-88 degrees (F)
  • For use in salt and freshwater aquariums

The built-in memory feature makes it easy to maintain a consistent temperature. Upon each connection of power, the heater will automatically return to the last temperature setting.

Specifications:
100 Watt:

  • 8" Long
  • Up to 25 Gallons

200 Watt:

  • 9.5" Long
  • Up to 50 Gallons

300 Watt:

  • 10.5" Long
  • Up to 80 Gallons

500 Watt:

  • 15.5" Long
  • Up to 130 Gallons
Via Aqua Titanium Heater - 200 Watt - (50 Gallons)
$84.44
Via Aqua Titanium Heater
Via Aqua Titanium Heater ('006903735582)

Via Aqua Titanium Aquarium Heaters feature a new and improved design to make temperature control easier than ever. The durable, lightweight titanium heating tube connects to an easy-to-read LCD controller, featuring built-in memory, automatic shutoff, and a range of 64-88 degrees (F).

  • Titanium heating tube with easy-to-read LCD controller
  • Built-in memory of last set temperature
  • Auto shut-off at temperatures over 90 keeps fish safe
  • Temperature range of 64-88 degrees (F)
  • For use in salt and freshwater aquariums

The built-in memory feature makes it easy to maintain a consistent temperature. Upon each connection of power, the heater will automatically return to the last temperature setting.

Specifications:
100 Watt:

  • 8" Long
  • Up to 25 Gallons

200 Watt:

  • 9.5" Long
  • Up to 50 Gallons

300 Watt:

  • 10.5" Long
  • Up to 80 Gallons

500 Watt:

  • 15.5" Long
  • Up to 130 Gallons
Via Aqua Titanium Heater - 300 Watt - (80 Gallons)
$86.64
Via Aqua Titanium Heater
Via Aqua Titanium Heater ('006903735605)

Via Aqua Titanium Aquarium Heaters feature a new and improved design to make temperature control easier than ever. The durable, lightweight titanium heating tube connects to an easy-to-read LCD controller, featuring built-in memory, automatic shutoff, and a range of 64-88 degrees (F).

  • Titanium heating tube with easy-to-read LCD controller
  • Built-in memory of last set temperature
  • Auto shut-off at temperatures over 90 keeps fish safe
  • Temperature range of 64-88 degrees (F)
  • For use in salt and freshwater aquariums

The built-in memory feature makes it easy to maintain a consistent temperature. Upon each connection of power, the heater will automatically return to the last temperature setting.

Specifications:
100 Watt:

  • 8" Long
  • Up to 25 Gallons

200 Watt:

  • 9.5" Long
  • Up to 50 Gallons

300 Watt:

  • 10.5" Long
  • Up to 80 Gallons

500 Watt:

  • 15.5" Long
  • Up to 130 Gallons
Via Aqua Titanium Heater - 500 Watt - (130 Gallons)
$95.54
Zoo Med Aquatic Betta Therm Mini Aquarium Heater
Zoo Med Aquatic Betta Therm Mini Aquarium Heater ('097612240047)

Zoo Med BettaTherm Heaters are perfect for your betta fish whose life is best in warm water. This 7.5 watt heater helps keep your betta bowl 5 - 10 degrees warmer than room temperature and is 100% submersible. The Betta Therm Heaters are designed in a round shape and fits in most glass or acrylic fish bowls.

  • 3" Diameter - 7.5 Watts for 1-3 Gallons
  • Increases temperature 5-10 degrees from ambient temperature
  • Submersible heater can be used in Glass or Acrylic tanks and bowls
Zoo Med Aquatic Betta Therm Mini Aquarium Heater - 7.5 Watts
$20.12
Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater
Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater ('97612303520)

The Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater is fully submersible and simple to use, with a preset thermostat that keeps your turtles habitat at a safe and comfortable 78°F. Mount it in seconds with included suction cups, plug it in, and you're done!

  • Preset thermostat keeps water safe and comfortable at 78°F
  • Fully submersible with digital temperature display and suction cup mounting
  • Keeps aquatic turtles healthy and happy
  • Helps prevent appetite loss due to cold water

The Turtletherm is great for Red Eared Sliders, African Sidenecks, Musk, Mud, Painted, Map, Diamondback Terrapin, and a variety of other aquatic turtles.

Note: Fully submerge heater in water before plugging heater into electrical outlet. Safety shut-off activated if removed from water.

Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater - 150 Watt (Up to 50 Gallons)
$56.68
Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater
Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater ('97612303537)

The Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater is fully submersible and simple to use, with a preset thermostat that keeps your turtles habitat at a safe and comfortable 78°F. Mount it in seconds with included suction cups, plug it in, and you're done!

  • Preset thermostat keeps water safe and comfortable at 78°F
  • Fully submersible with digital temperature display and suction cup mounting
  • Keeps aquatic turtles healthy and happy
  • Helps prevent appetite loss due to cold water

The Turtletherm is great for Red Eared Sliders, African Sidenecks, Musk, Mud, Painted, Map, Diamondback Terrapin, and a variety of other aquatic turtles.

Note: Fully submerge heater in water before plugging heater into electrical outlet. Safety shut-off activated if removed from water.

Zoo Med Turtletherm Automatic Preset Aquatic Turtle Heater - 300 Watt (Up to 100 Gallons)
$63.98
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