77a8cecc_Reefkeeping_Acronyms__STANDS_FOR
[ACRONYM] PAR [WHAT IT IS] Measure of irradiance, the amount of sunlight or ambient light that diffuses through water compared to surface light. Focuses on the dynamics of the photic zone, ~1-5 meters below the surface [STANDS FOR] 
Photosynthetic Active Radiation
Reefkeeping Acronyms
STANDS FOR