Aquarium Heaters

Aquarium heaters are very important to provide a stable water temperature for inhabitants. Fish cannot self regulate their body temperature like humans so naturally they will take on the temperature of the water they live in. Depending on the size of your aquarium you will need a certain sized heater.

Aquarium Heater Sizes

Heaters come in sizes between 25 watts for a small tank (10 gallons) and 300 watt for tanks around 80 gallons. If your tank is over 80 gallons, for example 240 gallons, you will want multiple heaters. Three 80 watt heaters would be sufficient for a 240 gallon aquarium. You should also consider the ambient temperature of the room your aquarium is in. If it is likely to get very cold you should error on the side of higher wattage than you need to be safe. If the room is likely to be warmer than the aquarium should be you may consider investing in a chiller. A general rule of thumb is you will want a heating system with 3 – 5 watts per gallon of water.

Aquarium Heater Features

Almost all heaters will have a temperature dial. Heaters for smaller tanks (less than 25 watts) will likely not have a temperature setting and will always be set to a certain temperature that is unchangeable. Higher end heaters will include a built in temperature gauge. These built in thermometers are handy to have but will only give you a temperature reading of the water close to the heater which in most cases is the warmest water in your tank. This may leave you setting the heater temperature according to the water temp around the heater resulting in areas farther away from the heater being colder than what is recommended.

For accurate water temperatures you should consider purchasing a thermometeror two for monitoring temperature in the display tank and sump if available. Most species of aquarium fish live in water between 75 and 82 degrees.

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Ebo Jager Heater Replacement Bracket w/ Suction Cups

Ebo Jager Heater Replacement Bracket w/ Suction Cups

Our Price: $5.16

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Ebo Jager Heater Replacement Bracket w/ Suction Cups

Hydor Mini Aquarium Heater, 7.5 Watt

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Hydor Mini Aquarium Heater, 7.5 Watt

Hydor Mini Aquarium Heater, 15 Watt

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Hydor Mini Aquarium Heater, 15 Watt

Red Sea Max Replacement Heater, 150 Watt

Red Sea Max Replacement Heater, 150 Watt

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Red Sea Max Replacement Heater, 150 Watt

Hydor Theo 50 Watt Aquarium Heater

Our Price: $17.57

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Hydor Theo 50 Watt Aquarium Heater

Hydor Theo Heater 25 Watt

Our Price: $20.99
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Hydor Theo Heater 25 Watt

Hydor Theo 200 Watt Aquarium Heater

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Hydor Theo 200 Watt Aquarium Heater

Marineland 25 Watt Visi-Therm Submersible Heater

Marineland 25 Watt Visi-Therm Submersible Heater

Our Price: $20.99

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Marineland 25 Watt Visi-Therm Submersible Heater

Hydor Theo 100 Watt Aquarium Heater

Our Price: $21.80

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Hydor Theo 100 Watt Aquarium Heater

Ebo Jager Aquarium Heater, 50 Watt

Our Price: $22.56

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Ebo Jager Aquarium Heater, 50 Watt

Ebo Jager Aquarium Heater, 75 Watt

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Ebo Jager Aquarium Heater, 75 Watt

JBJ True Temp Safety Guard Kit with Magnet Supports

Our Price: $25.99
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Features
SAFETY GUARD
All titanium heating elements are securely placed inside our safety guards that protect you and your livestock from the heating core. Our flow thru design grants continuous water contact without interruption.

MAGNETIC HOLDERS

Include innovative magnetic heater and temperature probe holders that replace outdated and unreliable rubber suction cups that constantly lose their hold. Easily place your heater vertically, horizontally, or at any angle you please with long lasting stability.