alicappello
Aquarium Advice Apprentice
For some reason my heater isn't heating up my tank. When the light is one my tank will heat up to like 79 or 80 then when I wake up in the morning its like 68 - 72. I know the temp is right cause I have tested that like 3 times with different thermostats. I have the heater on as high as it will go and still nothing, the heater is warm but just mot my tank water. I went last week and got a new heater and the same thing happens. What can I do?