Need ID for Hitch Hiker

[specop504]

I need an ID for this interesting critter. I ordered Chaeto from Dr Foster and Smith and found this guy buried in side. Any ideas?

 

[charlesr1958]

Looks to be an anemone, sorry I don't know the species but I see anemone that appear roughtly the same using long blades of seagrass as perches in the currents here. Might want to watch for how fast they can reproduce as I would fear they might be much like aiptasia, that is, if it is an anemone...

Chuck

 

[specop504]

I have already separated him from the tank, fearing it could be something that I did not want.

Thanks!