GSP-green star polyps
BTA-bubble tip anenome
LTA-long tenticle anenome
LFS-local fish store
LPS-large polyp stony coral
SPS-small polyp stony
PC-power compact lighting
MH-metal halide lighting
VHO-very high output
Blasto-Blastomusa coral
Acro-acropora corals
Zoos-Zoanthid corals
Monti-Montipora
GPH-gallon per hour
fuge-refugium
PS-protein skimmer
CL-closed loop
BV-ball valve
I'm sure there is more, that's just off the top of my head.
Matt