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#4
09-05-2010, 11:13 PM
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IMO the front to back spread would be an issue on a 24" x 24" tank. I would think 4 T5's would be more than enough if they were evenly spaced apart front to back. Maybe look at the fixture in a store and see how the light spread works over a 12" depth. Eight bulbs in my view would be definitely too much. Retrofit would be the best route to go if possible, you can decide how far apart the bulbs are placed to get proper front to back coverage.
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120 gallon sps/anemones/LPS reef since 2004 Apex controller 8 x 54 watt T5 PowerModule Herbie's silent overflow system Jebao DC 12000 return pump Jecod CP-40 Cross-flow circulation device Mini Bubble King 180 Barr Aquatics calcium reactor Bucket fuge 
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