Aquarium HeatersA quality heater is necessary if you intend to maintain a successful tropical freshwater, marine fish or reef system. Temperature fluctuations often go unnoticed by aquarists and can cause stress to fish and corals. Most heaters include a built-in thermostat to select the optimal temperature for your aquarium.
Make sure to keep your fish warm during the day and night with the Hydor Theo Heater from Pet Store . This is essentially a lighting fixture, which is similar in function with ordinary reptile lighting. There are some major diffe...ONLY$26.99