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Old 12-05-2009, 06:44 PM
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I agree with JDigital you should be fine with a 150W. I have a 250W HQI on my tank and its ALOT of light for those corals. I keep SPS right on the sand bed (24") and am still seeing good colour and growth.

I used to have 4x 24W T5HO and could keep SPS coloured up and growing up to 2/3rs of the way down.
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