The Science of Aquarium Heaters



A heater is necessary to stabilize the temperature of your aquarium water. Even if you live in a warm climate, the temperature changes from day to night are enough to stress your fishs' immune system and leave them vulnerable to diseases.

A minimum of 4-5 watts of heat per gallon of water is recommended. If you have a large aquarium, two heaters are better so temperatures throughout the tank can stay stable. Also, two heaters give you redundant heat in case of aquarium heater failure.


Aqueon Aquarium Heaters
AG06100 Aqueon Aquarium Heaters have overheat shutoff to keep from damage if not properly submerged. Shatterproof. Great value.
Category: Aquarium Heaters
Price: $21.99 
AG06105 Aqueon Pro Aquarium Heaters
AG06105 Aqueon Pro Aquarium Heaters are precision calibrated and fully submersible. Shatterproof and nearly indestructible
Category: Aquarium Heaters
Price: $32.99 
AK01000 Dual Display Digital Aquarium Temperature Controller
AK01000 Dual Display Digital Aquarium Temperature Controller offers precise aquarium water temperature control. Highly visible dual digital LED display, the DDC-800 includes adjustable high and low temperature settings with audio alerts.
Category: Aquarium Heaters
Price: $89.99 
AK01848 Aquatop Dual Digital Aquarium Heater
AK01848 Aquatop Dual Digital Aquarium Heater shows you the current temp and target temp of the water, then hold your tank at a steady temperature. Remote sensor is accurate and temp settings are accurate to within +/-1 degree. Just set it and go.
Category: Aquarium Heaters
Price: $33.99 
CB00208 Neo-Therm LED Aquarium Heater
CB00208 Neo-Therm LED Aquarium Heater display set temp and tank water temp simultaneously. One touch set. Slim design.
Category: Aquarium Heaters
Price: $58.89 
EH36134 Jager True Temp Submersible Aquarium Heaters
EH36134 Jager True Temp Aquarium Heaters are submersible, shatterproof, precision instruments. Shock-resistant Pyrex glass construction is twice as thick as most other heaters and far stronger.
Category: Aquarium Heaters
Price: $23.99