A reef-ish setup designed for: Calinus Laevimanus or C.tricolor, and/or an Ophuroidea

[Ruth]

Here is a link to some common abbreviations that helped me in the past. There are of course more and a couple that I see missing are on a hotly debated topic right now - BB=Bare bottom tank, DSB=Deep sand bed, and SSB=shallow sand bed.
http://www.megapathdsl.net/~fmariani/abbreviations.htm