And difficult to do if you’re not there.DuaneV said:If you have fish tanks you either have to have blackout curtains and/or AC. No other way around it.
You can do water changes with cooler water to lower the temp, float ice packs, etc., but its a huge pain in the butt. I keep mostly open top tanks so I lose a ton of water in the summer to evaporation so I just add cooler water.
If you cant regulate the room temp with an AC youre going to have to be creative.