Aquarium Heaters

The proper aquarium heater size is minimum 3-5watts/gallon, so a 10 gallon aquarium heater will usually be 30-50 watts. A large aquarium heater may be closer to 3w/g. We recommend using multiple heaters for redundancy in case one fails. Plus, always have a backup heater.

Most small aquarium heaters have a built in thermostat. An analog thermostat has manual control; a digital heater is electronically controlled. Either way, use a separate aquarium thermometer to verify the temperature.

An internal heater goes in tank or sump, usually attached by suction cups. An inline aquarium heater attaches to filter tubing outside the tank. A titanium aquarium heater is a sturdy internal aquarium heater without built in controls, so an aquarium heater controller is necessary. A temperature controller is also great to have in case a heater gets stuck on.
25 Results
Zoo Med MagClip® Magnetic Suction Cups

Zoo Med MagClip® Magnetic Suction Cups

Cobalt Aquatics Neo-Therm 100 Watt Aquarium Heater w/ LED Display

Cobalt Aquatics Neo-Therm 100 Watt Aquarium Heater w/ LED Display

Cobalt Aquatics Neo-Therm 150 Watt Aquarium Heater w/ LED Display

Cobalt Aquatics Neo-Therm 150 Watt Aquarium Heater w/ LED Display

Hydor THEO Heater 400 Watt

Hydor THEO Heater 400 Watt

Jager Heater Holder

Jager Heater Holder

Hydor THEO Heater 200 Watt

Hydor THEO Heater 200 Watt

Hydor THEO Heater 300 Watt

Hydor THEO Heater 300 Watt

Hydor ETH 201 In-Line Heater 200 Watt - 5/8 inch

Hydor ETH 201 In-Line Heater 200 Watt - 5/8 inch

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