Hey guys! Thought this may be a helpful reference! Fell free to add or change!
A=Amp
AA=Amino Acid
AC=Activated Carbon
AC=Alternating Current
Acan Lord=Acanthastrea
AEFW=Acro Eating Flat Worms
AFAIK = As far as I know
AFM=Aquarium Fish Monthly, magazine
AGA=All-Glass Aquarium
AGE=Acrylic and...