Ive been reading that garlic can help boost the immune system of a fish. In particular I read a threat which said what kinds of store bought minced garlic was safe. It said that the ingredients could only have garlic and water. My fridge already had garlic in it, but the ingredients were garlic, water, and citric acid. I would assume that citric acid is not safe for fish, but I just want to double check. Citric acid is not a strong acid, so would it be dilute enough to be okay? Or if I rinsed off the garlic before feeding it to my fish? In my tank (20 gal) I currently have 4 platys, 3 mystery snails, and 2 horned nerites. I'm asking because I originally had 5 platys, but one seems to have gotten stressed out, sick, and just recently passed away (either yesterday or the day before, I can't really remember.) Now one of my other platys, another not very popular with the other three fish, and the first platy to live in the tank (which is cycled, I've had it for many many years, when I say he's the first I mean he is offspring from the last batch of platys which belonged to my sister and then reproduced like rabbits.) is starting to not look good as well.... So I just wanted to get him some help while I get my quarantine and other tanks set up and get space available for them. (Right now there are some shelves in the way.) Thank you!