freshwater angelfish enlarged bottom lip

[chafed]

the bottom part of my angelfish's mouth (I suppose fish don't have lips...) has always been noticeably larger than the top part. as the angelfish has grown, it's bottom lip has grown large as well. it almost resembles a tumor. does anyone know what could have caused this? think it's just because of genetics?

it is overall a very healthy fish. great colors, eats well, no disease.



thanks

 

[fillyfolly]

Pics might help.

 

[Jory]

its probably just a genetic deformity. i'd say give it time, if it grows larger it could be a tumor, but i highly doubt it.