08-19-2008, 08:58 AM
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I have a renacal top light 150 watt in my 30 tall that is heating the water too high. I originally thought it may be the stream of bubbles messing it up so I moved it next to the intake of the power filter. Yesterday I moved it to a corner where there's lower flow thinking maybe the flow was messing it up. I've got it turned down to 72 and the water is still 84 or 85 and the heater cycles on. Maybe 2 or 3 minutes on and then quite a while off, but with the temp that high it shouldn't turn on at all.
So, from reading this thread, I should move it back under the intake and turn it down further and if it still gets too hot, buy a better heater?
So far, the only heater I've been happy with is the visitherm stealth in my 55. Does anyone have suggestions for what they've found to be reliable?