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#1
05-22-2007, 07:25 AM
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My 250's sit about 6-7 inches off the water. I have a chiller which helps a lot - the best investment I have made! An 8 degree swing is a lot - I could see corals being very stressed out with that. Fish might be a little more tolerant, but it is still a large swing. I guess it also might help to define '8 degree swing'... are you talking 78 to 86? or 78 to 82, back to 78 (4 degree's up, then 4 back down)
Either way, it would help if you added some fans if a chiller is not an option. The less swing the less stressful it is on fish/coral.
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Go Canucks! 
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#3
05-22-2007, 07:02 PM
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The temp swing is 78 to 86 and the green algae is NOT hair algae but it forms on the glass within 2-3 hours of the MH turning on (ie. I cleaned the glass really good last night and by noon today (2 hours of MH) I have a noticeable film of green slime on the glass) I have no corals in there yet, but the 2 clowns don't seem at all stressed nor do any of the inverts. (snails, hermits, shrimps)
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 38 Gallon Custom Starphire, Remora Pro, 2 Seio 820's, 24" Giesemann Infiniti 1x250W MH + 4x24W T5, 60lbs Live Rock.
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