I am running guppies, mollies, and cories in a 20 gal
tank with plenty of filter, but my PH is high at 8.4...I think the high PH is causing stress to the fish and making the water cloudy.
What is the best product/method to lower the ph?
Could I use distilled white vinegar?
I have gravel substrate and my well water is very hard, but I use water from the softener...haven't test the PH of my tap yet.
AqAdvisor says I should be at a PH of 7-7.4