Welcome back. I'm hoping to get more nice SPS frags from you soon.
As for T5 vs MH, I like the fact that I can actually touch my 5x39W T5HO (Aquactinics TX5) canopy and that it does provide enough light for my corals. They didn't however provide enough light for my 3 Crocea clams which perished shortly after I swapped lights (all else constant).
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