Heaters & Chillers

Aquarium heaters and chillers

Fish and corals need a steady temperature, because sudden swings stress them. Our aquarium heaters and chillers include submersible heaters, heater controllers and chillers for tanks that run too warm in summer.

Choosing a heater

A common guide is three to five watts per gallon. Many reefers use two smaller heaters instead of one large one. That way, if one fails, the other keeps the tank warm, and a stuck-on heater can't overheat it as fast.

A separate temperature controller adds extra protection. It switches the heater off if the tank gets too warm.

Common questions

What temperature should a reef tank be?

Most reefers keep it between 76 and 79 degrees Fahrenheit. However, stability matters more than the exact number.