I noticed this about a week ago on one of my shiners, it's a small white bubble/bump on it's lower lip. Hasn't affected it's appetite at all nor it's behavior and it doesn't look filamentous at all. Any speculation on what it might be? The fish has no other spots anywhere else on it's body, just the very tip of it's lower lip.
Water is their native river water and parameters are:
Ammonia-0
Nitrites-0
Nitrates are a little high in the 80 PPM.
Alkalinity-120 PPM
pH 7.8