What is this?

[oiliaN]

Ok, crappy pics so Ill try to explain it the best I can. It looks almost like the tentacles of a squid poking out of one of my rocks. The tanks only a month or two old and the rock was completely dried when I put it in. I've added a couple frags to the tank along with other general livestock, so I don't know if it hitched a ride, but it looks bigger than any of my frags currently are, so it would have had to grow extremely fast.

 

[Mike J.]

The pictures are pretty blurry, but the first pic looks like an Aipstasia.
http://www.lionfishlair.com/hitchhiker/hitchhiker.shtml

 

[Wags]

Yeah looks like apastasia it grows and spreads fast

 

[Wags]

Forgive the iPhone spelling

 

[redfishbluefish]

I believe it's a pest anemone....but the picture is too blurry....if not aptasia, I'd consider majano. Check pictures of both to determine which one....either way, nuke them.