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.
Buy One Cobalt Aquatics Mini-Therm Aquarium Heater 5 watt and Get One Brine Shrimp Flake Food - 3 oz FREECobalt Aquatics Mini -Therm Aquarium Heater 5 watt The all new Cobalt Aquatics MINI-Therm compact and fully submersible heaters feature a constant ON design, specifically for small aquariums up to 1.2 gallons (4.5L). The h...ONLY$26.68