I'm fairly new to Betta keeping as some of you all know. I got my first boy back in early January (he's doing extremely well thx to help from here) and since January in Wisconsin it was really cold.. our summer is a different story. I'm worried about their water temperature. We had our first really warm day (80F+ humidity) and I don't have air conditioning so I rely on just fans. I've been watching the temperature on my girls tank (a 7gal w/o a heater) rise from 75F to 82F from morning until now. I have a heated 10gal tank that looks like it's around 85F and turned the heater down to 79F in hopes it'll just stay shut off (which it isn't). I'm extremely worried for the day's when it gets to 90F+.. is there a way to keep these tanks cool? or is it okay for them to be in water around 85F+ during the day? I for sure can't afford some water cooler for them, but maybe someone knows some tricks to keeping the water temp. closer to 80F during hot days? Thanks for any responses.