digitate hydroid Helpp!!!!

[ixTCxi]

http://www.melevsreef.com/id/digitate_hydroid.html

do anybody have any experience with this?
saw one on a frag and they only show when the light is out.

 

[usctom]

I have them all over my tank. They only seem to piss off my Zoanthids. Everything else seems not be bothered. I don't think there is much you can do once they spread but if it is only on the frag I would get it out of your tank and quarantine.
Tom

 

[ixTCxi]

How can you prevent those hitch hikers? does dipping kill it?
seems like is unavoidable.

 

[smoq]

They are a part of natural reef environment and are not aggresive in any kind, so I would just leave them alone. just my $0.02