After only a few months of use, I woke up this morning to my cockplay on my 5 gallon. I checked everything and finally noticed that during the night the heater cover came loose and the live wire got into the water. I was lucky it didn't start a fire and kill my fish. I had problems with this heater from the start. it never held the set temperature and kept jumping into the 80s, i would recommend a higher quality heater instead.
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