allenjj Advanced Reefer Manhattan Reefs Location Albany, NY Rating - 0% 0 0 0 Nov 9, 2010 #21 ORP Values I have an apex controller that reads my orp which runs between 350 and 425. When I change the water it typically drops, but if the skimmer and pumps are all running properly, it runs about 400. Last edited: Nov 9, 2010
ORP Values I have an apex controller that reads my orp which runs between 350 and 425. When I change the water it typically drops, but if the skimmer and pumps are all running properly, it runs about 400.