My temp is between 80 - 82F. Lately though, good thing I caught it while I was changing filters, the water came up to like 90F 8O
I pulled the plug on the heater and in the course of 2 days, there was a drastic change from 90F to 85F. I pointed my heater's setting to 75 then monitored the tank temp and the fish. Two more days later, it went down to 80F. Then after two more days, it stayed there at 80F.
So how come heaters would say 75 but it will maintain 80F? My FW
tank heater is set at 72F but the temp in the tank is at 79F right now. Is there an arithmetic calculation that I have to consider or something?