GREEN "BUBBLES" GROWING ON MY SNAILS

[Jessica3096]

I just posted a topic on what I think may be a starfish. I just bought some live rock and it came on it. It's black with long tentacles hid in a deep crevice in a piece of rock. The tentacles look like they have spikes all over them. I counted at least 4 tentacles and they look like they could be at least 2-3 inches long. Any ideas?

[roka64]

Jessica,
A few of us responded to that and I moved it to the ID section (about the serpent star).