I need help as a beginner who never owned an aquarium...All my water parameters are correct except nitrate is high. the tang is swimming low in the tank and on it's side sometimes.. Fins are flipping too much?.. It's not happy.. Still eating but he used to look very content and swim gracefully.. Now he seems to struggle a little to stay afloat/ straight. He is eating normally.. I put a wave maker in the tank and that's when it seemed to start and all the fish started to hide so I turned it off.. No marks on his body or anything..wavermaker was turned off.. quarantine tank isn't ready yet. tang came w/ the tank and used to be happy go lucky..
any suggestions? pardon me but I am new and reading as much as I can.. this fish was/is the highlight of the tank and we are very upset that he doesn't seem happy.
