[Got Fish?]

one of my serpa tetras, seems to have a small sort of white pimple near its backfin,,,, i've just noticed it this morning, i dont know if i'm just worrying for no reason, but none of my other fish seem to have it, seeing as this tetra is the smallest one in the group, i thought one of the others or maybe my angelfish might have bitten it...please help!!!!!!!!!!:help:

 

[KDahlin]

Does it look like a grain of salt? It could be ich (specifically Ichthyophthirius multifilis). Is the fish flashing at all?

If it is ich, this article might be of help: http://www.aquahobby.com/articles/e_ich2.php

 

[retoid]

If you have a camera, take a pic of it and show us. If not, google fish diseases and try to find something that looks similar to what your fish has.