I know that a few drops of vintager will lower the ph of my water, but what if it was apple cider vintager, would it make a difference. I watered them yesterday, they show no sign of harm, but i'd like to know for sure.
I still use white vinegar (sometimes cider vinager) to alter the ph. Seems fine to me. Some people have tried lemon juice, but I have heard this usually causes an adverse reaction.