I needed a heater and fast for a 10 gallon. My only options were 2 cheap pet cetera ones (I had one malfunction and cook all my fish one night) Or my good stealth heater that is 100 watts. I have read that stealth heaters are good at holding the temperature. One online forum said that it would be ok. I just wanted to ask you guys though, I have the in the 10 gallon know should I be worried about over heating, or is the high price tag money well spent. Thanks in advance.