No, it does look like a wart. Four of the six have it to some degree. I called my lfs just prior to their closing and they thought it might be a parasite; without seeing it. I told them I had Nox Ich, which is Mal. Green and they said to try it as opposed to doing nothing until tomorrow night. I will treat it with that stuff, as if it is a parasite, and see what happens. I'll keep you posted. Thanks!