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Old 09-25-2006, 01:17 AM   #1
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heat question

im currently fighting a heat problem. I changed from 2 65w CF to a coralife dual 150W HQI retrofit. now my tank in a air conditioned room gets as high as 84 deg. I have put 2 fans on the tank (6") seemed to bring it down a little bit, adjusted the heater, I think it was runing a litle warm. but still have like a 4-6 deg temp change over 4 hrs. I have 2 rio 2100 pumps in the wet dry running a skimmer and the return. I tried turning the skimer off to see if that was an issue, and it didn't change the temp. I took the heater out so i can see if it's on and it seems to be on much longer than it should be. heater is set for 75 deg tank is at 78 and it's still on. So i am thinking a external temp controller? any suggestions? maybe a chiller? I am looking to upgrade to a 180 possiably this week, but i want this to be fixed just in case it doesn't happen. If you think a chiller is the olny option, what would be a good choice?

thanks in advance..

Tj
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Old 09-25-2006, 10:26 AM   #2
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Can you move the lights higher off of the tank?
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Old 09-25-2006, 11:19 AM   #3
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How are your fans situated? Have you contemplated perforating the canopy? Is that possible? In wooden canopies, fans blow in, with holes drilled in the top (1/4-1") If you are somewhat artistic, you can use the holes to illuminate the picture behind the tank (like little spotlights). The possibilities are endless. One friend cut out starfish to illuminate the ceiling.
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Old 09-25-2006, 11:26 AM   #4
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Where are those fans aimed? Exaust fans in the light fixture itself would be the most benificial. What kind of hood do you have?
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