I had a sudden ammonia spike in my quarantine tank and lost 1 clown with no visible symptoms. My other clown is still alive but appears to have nasty burns. His back half colors have paled drastically and his back top fin is damaged. He hovers in one spot over décor while breathing heavily and he doesn't use his back half more than necessary. I'm guessing due to pain. I don't see visible gill inflammation and he's not laying on the bottom of the tank yet or resting on the décor, but I'm worried his gills might be damaged. I did a 50% water change, but is there anything I can do other than change the water?



