I've run everything from BB to DSB and everything in between. Frankly I think BB or super shallow sand bed are the way to go. Easy to clean and, as has already been said, will soon be covered in Coraline or zoas so you don't really need to worry. I've even seen one tank on RC that had pretty much a "lawn" of GSP.
The only reason I'm going with a super shallow sandbed in the 20 gallon is for looks...there won't be a goby, but will be some sand sifting snails.
Either way you go will determine how you're going to secure live rock for display.
Hope this helps!
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75 gallon with 20 gallon sump in the works.
R. Bacchiega. Tattooer
I didn't smack you, I simply High Fived your face.
I've got so much glue on my pants it looks like a Friday night gone horribly wrong.
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