Originally Posted by
chort55
Tunze is awesome, but to pay nearly double the price for a powerhead that is going to be from the sounds of it tucked behind the rockwork anyways does a slightly bigger sized koralia make much difference? Also the possible start and reverse issues only come into play when you have them on a timer or turn them on and off frequently.... most can be solved FME with a dab of glue on the rubber bump stop as well ;) I have been using my 3 1400's for over 2 years now, and a 750 for about a year, all but the 750 have been on a timer the entire time as well. Only time I have had issues were when the rubber stop on the front cover came out and jammed the propeller, glued them all in place and haven't had a problem since.
As far as heat, I ran my 180 at 75.5 degrees w/o issue w/o a chiller for 2 years, hottest it ever got to was 77.1 and that was on a day that was over 80 and we didn't run the a/c.
For the purpose of the pump I would go with a koralia 550-750 atleast and put the extra 20-30 towards something cooler ;) lol