01-04-2010, 07:03 PM
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Originally Posted by kelly528
The reason for this is that heaters bring water to a certain temperature by means of a thermostat on the top half of the device. The thermostat turns on when water temperature is below your specified setting. Then when the water gets to the desired temperature the thermostat turns the heater off until the water cools down again.
When you place a heater vertically in a low-current area, water that has been heated by the ceramic at the bottom of the heater rises directly up rather than irculating the tank. The thermostat senses the heated water's temperature and turns off while the rest of the tank stays cold.
There are 2 solutions that can be employed to fix this, one or both will work:
1) Adjust the heater so that it is on a diagonal/tilts to one side.
2) Increase the water flow next to the heater so that the warm water is blown sideways instead fo upwards.
I have had this problem with submersibles in low-current tanks and tilting soves it every time.
THANK YOU! I just tested in my shrimp tank and its working much better now, think the way I had it positioned before the lights messed with the actual thermometer of the heater