I have a coralife fixture on legs that keep the light approx 3 or 4" off the top of my tank and I get about a 3 degree change. So during the day I run a fan and it keeps my temp swing to less than a degree. With the 250 you should be able to keep the light approx 6 to 8" off the top of your tank and a fan would probabally kee the temp swing down. A chiller would be the best solution to a temp swing as far as I know. How many hours of light do you give your tank? Do you have lots of inverts ei.snails and crabs and also do you find your skimmer is pulling off alot of skimmate? I think to a certain degree all tanks will get algae on the glass. I have to clean mine weekly, but it's not hair algae.
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05-22-2007, 05:53 AM
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