I'll put in another recomendation for very little sand or no sand. 9 years ago I went for the DSB craze and with in 4 years I had problems like you wouldn't believe, I took the sand out and all the problems went away.
I wouldn't use sand at all in a tank again, and Barbottom takes a while to get looking nice, but there are other ways like useing a natural stone tile on the bottom like Travertine, or marble, ect.. Travertine is composed of Calcium carbonate (limestone) so it pretty much the same make up as live rock, and corals can attach to it veary easy. one thing look for pouros Travertine not filled.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.
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