Filefish Sucking On Polyps? wtf

[Cade]

I just witnessed my 2" filefish sucking on one of my sps corals polyps for about 30 seconds...? He just sat there with the polyp in his mouth...

I will check in a while and see if there is any damage, he is well fed.

Anyone see this behavior before? Should I sell the poor little guy?

Here is a picture of the type of coral he was sucking on..(thanks for the pic Wayne)