I have a juvenile sailfin tang that has been in my tank for about 2 months. Over the last week, he has gotten really skinny and seems to have stopped eating. All the other fish in the tank are swimming, active, and eating and the coral I have are also growing and spreading. He also seems to have gotten lethargic and stopped swimming around as much. I transferred him to a quarantine tank because I thought I saw signs of ick but since I've never dealt with it before, I'm not entirely sure. I've given him plenty of food choices all pretty much soaked in garlic and have started medicating with copper, but he just kind of sinks to the bottom of the tank and doesn't move. Have I waited too long to start treatment, and is there any hope when the fish seems to have also given up? Thanks for any advice. Oh, and before I forget:
Water parameters:
nitrite - 0
nitrate - 10
pH - 8.2
ammonia - 0
Water parameters:
nitrite - 0
nitrate - 10
pH - 8.2
ammonia - 0