50W Glass Heater

Ideal for 20L, 30L, 45L, 60L fish tanks

Heater must always be located in an area with strong circulation of water. If water movement is insufficient, the thermostat will not function accurately, and desired temperature will not be obtained throughout aquarium. You should be able to observe that when heating (lamp on), the warm water is circulated away from heater before rising to the zone of the thermometer scale.