I have a 4" Foxface that I've had for 2 weeks that has developed a bright yellow spot on the tip of his pectoral fin. It is 3 dimensional. Like a tiny yellow ball stuck to one side of his fin. It's about 2 mil and continues to get larger. The fish is extremely shy, won't eat if I'm near the tank, so I can't include a picture yet. He is eating well. Any ideas? It's as bright a yellow as his body, never seen anything like it....Help
Thanks guys.
Thanks guys.