brick-brothers Advanced Reefer Location Pennsylvania Rating - 100% 338 0 0 Jun 23, 2010 #1 Hey I was just wondering what PH preset do you have your controller set to for the co2 to turn on?
cali_reef Fish and Coral Killer Location On the waste coast, again. Rating - 97.3% 36 1 0 Jun 23, 2010 #2 It depends on the media type and the alkalinity demand of your tank.