Hi, does anyone have any ideas for cooling down the temperature in a tank? I have no heaters running and my tanks are not in a sunny location, but we are having a real hot streak, on top of the high humidity we have in Ohio and the water keeps climbing to 80 no matter how many times I do a pwc. Room temperature here is closer to 90 with curtains drawn and windows closed to keep the heat out. I'd really appreciate any ideas. I just don't want my little guys and girls to cook. Thanks 