u/AccomplishedDot3316

I have a 150G PH is 8.8 using API Master Kit. All water in system was treated with Prime. After identifying the High PH we used API PH Down, no change. Fish load consits of a few bottom feeders and a couple snails. All other perameters seem appropriate. What should I try next? Tape water tests at 8.0 from tap.

I have a 150G PH is 8.8 using API Master Kit. All water in system was treated with Prime. After identifying the High PH we used API PH Down, no change. Fish load consits of a few bottom feeders and a couple snails. All other perameters seem appropriate. What should I try next? Tape water tests at 8.0 from tap.