How many LED lights for a 180g SPS reef tank [Archive]

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PhantomLoneWolf

08/19/2012, 09:35 PM

I am looking at changing out my three 400watt MH over my 180g SPS reef tank with LEDs. However, I am confused as to how many LEDs to use and the different angle of lenses you can get. I would appreciate any input.
Thanks.