Hi guys, Hope you can help. My temp is keep going to the high end of 26.c when I now have my heater at 22.c. It was at 24.c but I turned it down when the tank would not go below 26.c
Its all brand new equipment, no faults. Just added 5x zabra danios.
pH 8.0
all other levels fine.
The light source is a flurecent tube, not sure of the wattage but it came with the tank so im assuming its the correct wattage.
Our living room, where the tank is, is always quite warm and the temp did drop to below 24.c over nigt with lights off both in tank and living room.
Just cant understand why its not staying at the temp I set the heater too?
Also, its still quites clody 48 hours after putting the fish in after becoming so 24 hours before putting the fish in, maybe related

Thanks guys