Sure hate reading stuff like this... I find that being in Texas and running halides I don't need a heater. I've used them to keep the temp a little more stable, but found that a couple degrees more nightly fluctuation doesn't bother anything and I get to have one less disaster prone device running in my tank.
ya, i think ill leave the heater out for now on. The only reason i ran one was to keep the tank locked in to about +/- 1 deg. So much for overkill on hardware...lol...