Dave is the resident lighting expert. I just know that my LED's that were comparable to 250 w MH's are only rated for softies down to 24". That's why I had to upgrade to the 400 w comparable one. It's rated for softies down to 30".
You really can't just add up the wattage and divide by the gallons and get a number that says much of anything. Take that to an extreme and here's an example. Put a 1000 watt light at one end of a 6' long tank. Your watts per gallon may end up sounding OK but do you really think that much would survive in the end of the tank that wasn't lit?
Just guessing here but I would think you would need 4 - 400 watt MH's and you might want to supplement that with some T5 actinics.
You're gonna be talking a lot of juice and a lot of heat.
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150 gal Custom. Born 5/7/07. 50gal, 29gal, 20gal Sumps. 30gal Frag Tank. ETSS 800 Skimmer, Deltec APF600 Skimmer. PFO Solaris Lighting on Display and Frag Tank
My Tank Thread
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