Aragonite 1-2mm reef grade sand. Not "live", just sand. I soaked and rinsed it several times with RO, until it was as clear as I could get it.
As far as maintenance... Nothing planned. I have several nassarius snails, and also a six spot sleeper goby (who moves enough sand around to free up any loose detritus). When I get more established I might add a sand sifting starfish to churn it up some too.
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Single System Setup: 210G SPS reef, 225G FOWLR, 72G water change, 50G frag, 120G sump. I promise a journal at some point! (anyone need some coral frags? I likely always have stuff that is frag-ready)
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