It can get so stinkin' hot in the house without the AC on. The 125g African cichlid tank was over 85F with room temp 90F. I popped the tops and put a fan blowing across the surface and it kept it from getting any warmer and brought, and kept, it down.
QUESTION: How hot is too hot?
QUESTION: How hot is too hot?
This is true.. Room temp is what a tank reaches without a heater.. Or even with ione if the room is hotter... And it will fluctuate with the room.