SPS, to live and be in reasonable health, IMO, need at least 175w MH. I have seen acros live and even grow under much less, but the light was 6 inches away. I'm not familiar with the T5 technology, so no idea what they would offer. To get nice color and growth, I'd go up to 250w minimum. A lot of this depends on the depth of the tank though
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Brad
Last edited by Aquattro; 11-23-2007 at 02:43 AM.
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