vinegar breaks down too fast , this causes the wild ph swings....you can use it in an emergency but not for continued use .....if you don't have a hydro shop nearby you can get ph up and down at your local pet store.....just make sure you get the acid base and not citric acid they break down like vinegar.....hope this helps Bro....

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any thing you read on my post is total bullshit I am just guessing at every thing because I can't even spell marywanna!!!!!!!!