Everything was going great, until I got some new fish (clown loaches) and had an ich outbreak. So I added some salt, raised the temperature, and bought medication. After that cleared up I tested my levels. My nitrates were through the roof so I did regular water changes and got the levels back down. But now my pH is about 8. And I need to bring it down to 7. I went to the pet store and got some pH reducer stuff but so far it hasn't been working. It'll go down but then the next day it starts going up again. It usually stabalizes at around 7.9 or 8. Does anyone have any suggestions about how to lower the pH? Thanks.