Weird bump on clown!

[OCDP]

I am noticing this weird raised bump on my female clown. It's on the right side of the fish , on the bottom of it's second band. I really can't get a picture.. I tried for like 45 minutes (honestly..) They just do not sit still. I don't know how else to describe it.. it's kind of in the shape of an 0 (like that..) but not quite as big obviously. It's a little discoloured in that area as well.. and I seen the same kind of coloration on it's tailfin and right fin.

Other than the obvious... stable, good paramaters... minimal stress. feeding heavy .. using garlic as well (or is this a bad idea?) I also feed flakes...

I'm not sure what it could be

*edit* I should also note.. the fish seems to be doing great.. eats like a pig of course, swims normally..