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50 Gallons or Less & Complete Kits

Heaters/Thermometers

A good quality heater is a must in saltwater, especially for your fish. Temperature fluctuations can cause a lot of problems with fish and some corals. Fish can become easily stressed if the temp is changing. A good rule of thumb is to keep your tanks temp within 2 degrees or less. For example, if your tank is running 78 degrees with your lights on, and they go off, make sure your heater keeps your tank at least 76-78 degrees. A good rule of thumb when shopping for a heater is 3 to 5 watts for every gallon.
Fluval Vue Tech
50 - 300 Watts
Blue Line
250w-1000w
Ebo-Jager
50w-250w
Finnex
100w-800w
Most Popular Heaters
Hydor
50w-400w
Visi-Therm Heaters
25watt-300watt heaters