Aptasia or what?

mblann1960

New Member
I have a new 30 gallon aquarium, had it about 2 months now.
Have a few live rock, 2 clowns and some hermit crabs.
On one of the live rocks is a small (the size of a small button) round "thing" with tentacles and a green center. Sorry I don't have a picture. But I think it is Aptasia? It is sorta brownish red and has the green center.
When the lights are off, it "retracts".
Right now, it is very small, maybe 3/8 inch in dia.
Any idea what this is?
I'll try and find a picture on the web of it.
Thanks!
 
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