can anyone id this for me

[saltwaterpicaso]

 

[Jacwil]

Looks like platygyra sp.

 

[Conesus_Kid]

Looks like platygyra sp.

^ This.

 

[saltwaterpicaso]

when i got it about 8 months ago it was the size of a thumbnail now its this big and has crazy tentacles that come out of it. never knew what it was

 

[der_wille_zur_macht]

I like the colors. lmk if you ever want to break a piece off.

 

[saltwaterpicaso]

im going to let it take over the rock as soon as it gets a little bigger i will