Fin Rot/damage

[bolivian_d]

Hello,

Today I picked up a bristlenose catfish. I did a general inspection of the tank and its inhibitants pre-purchase and could see that the fish was healthy. I didn't however notice the white tip of the bristlenose until I put it into my own tank. That's basically it, the back fin of my bristlenose has a white tip. It doesn't look particularly frayed. It doesn't look particularly natural either.

I know it's hard to make a diagnosis without a picture, but please advise a cause of action (if any).

Also, for arguements sake, say it is fin rot... will it repair by itself?

Thanks,

Don

 

[Corleone]

It might be normal. My bristlenose has white tips at the top and bottom corners of his caudal fin.