Zoanthids pushing mouth outward???

[MNMAVERICK]

I have thousands of zoas and many different types. I have recently seen a few single zaos pushing there mouths outward (looks like an umbrella). One or two zoaz have done this, but the rest of the zoas in the same colony seem to be fine. The zoas that have pushed out have not closed. Anyone have any ideas why this would be happening?

[Reefer Sutherland]

I've seen some of my palys do this.

[Koletang]

I have heard of zoas sometimes doing random things like eating their own skirts. Maybe something like that?

[a1t2o]

might have eaten something and is buldging out, like a fat belly.