Hello everyone just woundering if some one would know or have ideas to whats wrong with my red belly.He started growing this lump on his bottom side of his chin.Now the lump is bigger,pink and peels of after he rubs it on the tank glass.Not sure what it is looks like a large pimple in need of poping.KInda worried had him for 5 years no problems with him besides this.We figured one of the bones from a feeder fish might of got stuck in there causes and infection but not sure im posting pics of him please let me know what you think.Thanks
Oh the first pic is what it started out to look like and the rest is now
Oh the first pic is what it started out to look like and the rest is now