here is a great link to look at in respect to lighting in a reef aquarium...I was going to go with 3-400 W in my 24"deep 150G tank...it made me change my mind to 1-400 in the middle and a 250 on each side
http://www.reefcentral.com/forums/sh...hreadid=692484
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180g tank(6x2x2) w/170lbs LR, 2-250W 1-400W Halides, 2-3ft t5 Actinics,H&S 1260 200 Skimmer, 1-Tunze 6000stream w/controller, 1-6060stream, 70g sump, 30g refugium Neptune controller, Sequence Hammerhead inline return, Lifeguard 25W UV, 1-Tunze osmolator, 1-Tunze wavebox, 1/4Hp Pacific Coast chiller, MarineTech calcium reactor
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