77a8cecc_Reefkeeping_Acronyms__STANDS_FOR
[ACRONYM] NH3, NH3 [WHAT IT IS] Compound composed of Nitrogen (N) and 3 Hydrogen (H) atoms. In aquariums produced by the decomposition of organics. Very toxic to fish [STANDS FOR] 
Ammonia
Reefkeeping Acronyms
STANDS FOR