Not sure what they use for Ph up, but just go into the store and ask for ph up and ph down. The stuff is super concentrated, you need about a drop to get the ph to shift....
razzapiggy Reviewed by razzapiggy on . Best way to adjust Ph? I've been having major stunting problems and I think I might have finally stumbled on the answer. I was using that Ph down and Ph up for aquariums to adjust, but just read where that stuff contains too much salt and not to use it on plants. So, I'm wondering how much baking soda for up or how much vinegar for down I should try in a certain amount of water to adjust Ph. I'm thinking severe lock-out by now. What's the scoop on that Ph deal? Rating: 5