ID please

[lilrobb]

Found this one one a piece of formerly dry rock, that is only in the tank for like 5 weeks now.
Fully closed it has the shape of a limpet, about 4mm long - fully opened with polyps extended it is a good 15mm in diameter.
It has a calcerous base and something like a mouth in the center.

Any input is appreciated:

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[drnecropolis]

Some type of cup coral would be my guess..

 

[jennm]

It could be a tiny Scolymia. I had one spring up out of some rock once. Probably a larva that settled.

Makes one wonder if it "migrated" from some other rock, or stayed dormant in the dry rock?

Interesting

Jenn

 

[dave green]

Have you checked with Chris at Fish Scales?