mayday! sick fish!

[Invigor]

hi, i've got a pair of occelaris clowns, we've had them for about a month now, and the two have developped bumbs on them that to me, as far as I can tell look like warts. one of the fish has 3 on his gills, 1 on is tail and 1 on his dorso fin, the other has one spot on his mid back.

any idea what it is, and how I can heal it? I can try to get a pic, but they hardly sit still long enough for me to LOOK at it, yet alone take a pic of it!

Thank you!