I bought a 6in1 test from aqua shop. It has all tests but Ammonia. My GH and PH are too high.

PH- 8,2
GH- 19

I have been using "PH down" solution of API but doesn't seem to be working.

Edit: Oh , i just read an article. It says if your GH is high, you will have trouble taking down the PH.

Last edited by Fatih; 07/20/15 10:48 AM.