Max Water Temp.

Yep, after the first time it happened I unplugged it. Still happened afterwards so now I shove it down into the water. Stupid cheap heaters. I'll never buy one again that doesn't have actual temp graduations on the dial either.
 
While I agree that the heater being plugged in is not the problem (and unplugging it not a solution--if the temp does drop, that means it's faulty), another option for cooling a tank is to float a bag of ice. That way you don't introduce anything into the tank, don't increase evaporation, and don't risk stupid fish getting freezer burn.
 
Stupid fish getting freezer burn. :rofl:

Mmmmmm that thing up there where I normally find food must be food. I'll just take a nibble and... :lipssealedsmilie: I'm thtuck! WTF?!?!!
 
My room has been in the mid to high 80s lately. My heater doesn't have anything on it to turn down the heat. Since I unplugged it during the night, the temp in the tank slowly droppped to 82 and staying put. I have a fan in my room, but that hardly cools anything down.

As for A/C... I don't have one in any of my windows.
 
Oh, the joys of preset heaters. The more you say, the more it seems that heater and its malfunctions is the source of the problem. Jager 50 watt heaters are about $25 online (I paid $30 at my LFS) and it's a well reviewed heater for 7-16 gallon tanks that can be adjusted.

If the fan is a box fan (as opposed to a ceiling fan) and is blowing across the top of the tank, the evaporation it causes will lower the tank temp. That said, I'm thinking replacing your heater will be all you need.
 
My heater doesn't have anything on it to turn down the heat.

I'd consider investing in one with a thermostat then, if it's a heater that's constantly on it will heat the water as much as it can all of the time.

a fan will likely give you the best and easiest results, if you're going to use ice, make sure the water won't enter the aquarium or use dechlorinated water to make the ice in the first place.
 
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