Aquarium Heaters and Chillers

An aquarium heater and aquarium chiller are used together to maintain a constant aquarium temperature, a necessity for many fish and coral.

Almost every aquarium needs a fish tank heater to raise the water temperature. You will want 3-5 watts of tank heater per gallon of aquarium. The most common, a submersible heater, is placed inside the aquarium or sump. An inline aquarium heater attaches to a filter hose outside the tank. A titanium aquarium water heater is a powerful heating element that needs a separate controller.

We recommend owning an extra fish tank water heater for emergencies and quarantine.

Because reef tank equipment produces a lot of heat, many hobbyists need an aquarium water chiller. Most choose an external fish tank chiller that attaches to the return pump tubing. Some reef aquarists can get by with an aquarium fan, which cools the water through evaporation.

Contact our support or shop online to find the best aquarium heater or aquarium cooler.
61 Results
Aqua Logic Delta Star Chiller 1/4 HP, DS-3 with Temperature Controller

Aqua Logic Delta Star Chiller 1/4 HP, DS-3 with Temperature Controller

Zoo Med MagClip® Magnetic Suction Cups

Zoo Med MagClip® Magnetic Suction Cups

Cobalt Aquatics Neo-Therm 300 Watt Aquarium Heater w/ LED Display

Cobalt Aquatics Neo-Therm 300 Watt Aquarium Heater w/ LED Display

Chill Solutions CSXC-1 Thermoelectric Aquarium Chiller

Chill Solutions CSXC-1 Thermoelectric Aquarium Chiller

CoolWorks Ice Probe with Power Supply

CoolWorks Ice Probe with Power Supply

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

Chill Solutions CSXC-1 Chiller Installation Kit

Chill Solutions CSXC-1 Chiller Installation Kit

Hydor THEO Heater 400 Watt

Hydor THEO Heater 400 Watt

Jager Heater Holder

Jager Heater Holder

JBJ Arctica Titanium Chiller DBE-200 1/4HP

JBJ Arctica Titanium Chiller DBE-200 1/4HP

CoolWorks Microchiller

CoolWorks Microchiller

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