250W or 400W?
I getting lights for my new 150g tank..24 inches deep. I have a huge (14 inch dia.) toadstool that will be in there. I have 1- 400 W halide for the new tank already, and I was going to place in the middle. I was told that I should get 2-250's for the sides if I was looking at keeping softies in the tank as well...apparently 3- 400W halides would be too much unless I just keep sps's and lps's. The toadstool is 12 inches tall and I was plannig on placing near the bottom which would give approx. 12 inches of water and 6 inches of air between it and the halides...I would prefer to go all 400's, but I want to keep leathers etc. as well 
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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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