my carpenters flasher wrasse is laying down on my acclimation box and breathing heavily, tomani tang is breathing heavily but still swimming, looks like the new chocolate tang took his spot in his rock so I celared in for him but as I am writing this he is starting to lay on his side. He had what looked like bruises this morning but the wrasse was fine, nothing on the skin just heavy breathing hung by the tang noticed it this morning but he ate and was good but didn’t eat at all today but the flasher was good when I left, suspecting the damsels and the chocolate tang as culprits for the wrasse and all the tangs for the tomani. The only thing I’ve been doing differently this week was adding two caps of nitrate increaser for my corals as I had no nitrates, added a vitamin fish protector one day, and have dosed my tanks worth of Melafix for two days. What can I do for them?