i live in a 850sq/f apt. my thermostat has been set at 72 since i moved in. the temp never drops below 75. my neighbor across the hall (friend of mine) has the same layout and his apt is always cooler... my electric bill for the last 4 months has been over 300$... his is never above 225... i have complained and they have said its low on freon... didnt fix it... then they said the levels we off... didnt fix it. finally they got out a pro and evidently ( i never saw or talked to him) it is because of my fish tank... he says the humidity is to high and so the apt is not cooling. i dont buy this, i lived in a 1600 sqf house and my bill in the summer was never above 200$... and before that i was in a 900 sqf apt and the bill was never over 150$. i am at a loss and dont know what to do. my fiance just emailed me and said now the temp in the house is 80$ and the ac is set at 72.. and the outside temp is 75... any info you can give would be great... is it really possible that the fish tank is doing this?