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Heaters

Aquarium Supplies

Aquarium Heaters

A quality heater is necessary if you intend to maintain a successful tropical freshwater, marine fish or reef system. Temperature fluctuations often go unnoticed by aquarists and can cause stress to fish and corals. Most heaters include a built-in thermostat to select the optimal temperature for your aquarium.

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  1. Cobalt Aquatics Accu-Therm 25 Watt Aquarium Heater

    Cobalt Aquatics Accu-Therm 25 Watt Aquarium Heater

    Cobalt Aquatics Accu-Therm 25 Watt Aquarium Heater Features Fully submersible heater Easy temperature setting Computer tested, accurate ±2°F Triac equipped thermostat Borsilicate glass for superior heat and shock res...
    ON SALE

    Was: $25.99

    $22.09

  2. Cobalt Aquatics Accu-Therm Aquarium Heaters

    Cobalt Aquatics Accu-Therm Aquarium Heaters

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    Cobalt Aquatics Accu-Therm 25 Watt Aquarium Heater Features Fully submersible heater Easy temperature setting Computer tested, accurate ±2°F Triac equipped thermostat Borsilicate glass for superior heat and shock res...
    FROM ONLY

    Was: $25.99

    $22.09

  3. Hydor Slim Heater - 7.5 Watt (Up To 5 Gallons)

    Hydor Slim Heater - 7.5 Watt (Up To 5 Gallons)

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    The SLIM HEATER supplies Continuous Safe Gentle Heat that increases the temperature in small aquariums or bowls, approximately 5 to 10 degrees above ambient room temperature. There are no glass components to crack or break and do...
    ONLY
    $12.99
  4. Lifegard Aquatics 3 inch Clear Heater Cap Complete

    Lifegard Aquatics 3 inch Clear Heater Cap Complete

    3" Clear Heater Cap for Lifegard Aquatics Inline Heater Modules R175021
    ONLY
    $27.99
  5. WON Pro-Heat IC Heater 50 W

    WON Pro-Heat IC Heater 50 W

    Because fish are cold-blooded animals, they adapt the temperature of the surrounding water. Thus, if the water is cold, the fish will feel cold, too. In seas, lakes, rivers, etc., the water is naturally regulated so fish can liv...
    ONLY
    $47.99

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