well this is now a bummer, my 10 watt heater for a 5G tank apparently died. i noticed the temp had gon down to 78 yesterday and today it was down to 75, and I only noticed it after i went to clean the tank and am not sure what to do. I will be taking the heater back tomorrow, but in the mean time I got a tank that is half full of water in need of warming up and I am afraid of making the water for filling it up a little warmer to compensate. I heard that when you use warm water from the water heater you can get chemicals in the water that normally do not appear when it is cold, from the tap. I did decide to do it, trying to get the water from the tap close to the temp. in the tank. I hope it doesnt cause too much problems.
