Originally Posted by Turtlemom18
I donít feel like itís a wound because it was smaller and has progressively gotten bigger. Hereís a better picture. It really looks like a growth to me but from my research I canít find anything that would cause this on a pleco.
If that's the case, I suggest contacting Dr Iske Larkin or anyone that handles fish diseases at the University of Florida's Small animal hospital in Gainesville, FL. The Florida Fish Farmers Association use the U of F for their medical issues. This could be a respiratory tumor or just an odd growth. On another site, someone with a common pleco also had a growth, a slightly different color than your fish's, coming from the same nostril and it turned out to be a carcinoma. Needless to say, the cure costs were well more than the replacement cost of the fish. I can't say that they can identify it without a biopsy but they would be your best bet unless you have an aquatic vet local to you.