markh30
Aquarium Advice Regular
I purchased a 5-stage, RO system, which produces about 9 gallons a day (at least I think it does). Before I started using it, my pH readings in the aquarium from regular, dechlorinated tap water would average about 8.2. Ever since I started using the RO system, the pH has bottomed out at 7.8. I keep adding a pH buffer, but that doesn't seem to get the reading to go up. Has anyone else had this problem?