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Old 10/13/2007, 11:10 PM
kyletech kyletech is offline
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Join Date: Jan 2007
Location: Redding ca
Posts: 38
A 175w would work great on a 20 gallon but the bulb I have is a 10k so it would be very white with out atinics. I would run a 15k on 20k with a 175 or 250 watt hallide if I was going to do a 20 gallon
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220g mixed tank