enforcer8621
New member
I put a healthy mandarin in about two weeks ago. I didn't quarantine. A few days ago I noticed an ulcer type sore on his right caudel fin about the size of my little fingernail. he doesn't seam too upset by it and I'm just standing by to see how it turns out. Yesterday I noticed my yellow tang had popeye in one eye and today he looked 10 times worse and had it in both eyes. I've since put him down for fear of him getting worse and in more suffering. Any ideas what is happening? parameters all seam well within range. so far my two tomato clowns are doing fine and the mandarin is still around, just still has the sore on his side. did the mandarin and the tang have a battle royale?