My Corys Have White Lumps On Their Noses

I'm not sure I'm afraid. Pictures would help if you get the chance to catch them on camera. If it's White and fluffy like cotton wool, then it is a fungus. Apart from that I can't help.

I'm sure someone will along with more experience.

Oh what substrate have you got sand or gravel?
 
Oh ok. If you can use sand, as cories like to burrow. That is where they have got the bruises more than likely. Be careful it's not a fungus, as that could be the case aswell from digging into gravel.
 

Most reactions

Back
Top