Is this a tiny bubble coral, blasto, or what?

[Mako]

I can't tell what this little fellow is. It was a freebie that had fallen to the bottom of the LFS frag tank.

It appears to be a bud off of a larger colony, not a healed-over chunk of a larger animal.

It has a hard calcium skeleton that looks like an inverted fungia skeleton--- concave/bowl shape rather than convex.

However, when the polyp has inflated, it does not look concave.

The last two pics are of it feeding on a scrap of shrimp.


Here's a few lousy pics, this is a difficult coral to photo.


http://i347.photobucket.com/albums/p460/redfishsc/wood%20pens/lps_mystery.jpg
http://i347.photobucket.com/albums/p460/redfishsc/wood%20pens/lps_mystery2.jpg




Pic of this thing feeding on a scrap of table shrimp.
http://i347.photobucket.com/albums/p460/redfishsc/wood%20pens/lps_mystery3.jpg
http://i347.photobucket.com/albums/p460/redfishsc/wood%20pens/lps_mystery4.jpg

[got2envy]

looks like a baby plate of some kind..is it flat on the bottom?

[Mako]

Actually I did figure it out. It's a Fungia fralinae

[Amphiprion]

I'm not sure I'd narrow it down to the species level that easily, but it is definitely a Fungia anthocaulus.