And the water parameters are good? No temp fluctuations? No electric current or malfunction of epuipment?
Maybe I do worry too much but bottom sitting right next to the glass just doesn't seem right.
Water is fine, gets fin lvl water changes every 3rd day now. There is nothing that can pass current into the tank, heater is not plugged in. She is dealing with the heat wave like all of us this summer. Her tank has been fluctuating from 86 at high in the day to 78 at night. I have solved this now by freezing a case of water bottles. To place in the tanks to help keep them cooler.