Unknown hitchhiker. ID help...

[Shatodavis]

Purchased a piece of live rock yesterday. I have it in a qt tank. I removed a bristleworm already. After an hour or so I noticed this: Good? Bad? No clue. Help please

 

[KrisReef]

Looks like a bad nem, mojano or aptasia?

 

[Shatodavis]

Was afraid of that. What should I do? Pull it out? Scrub that area?

 

[BighohoReef]

My vote is aptasia... I'd take the rock out and remove the nem and rewash the rock in fresh saltwater.

Bristleworms aren't bad guys I'd be more worried about that nem.