Need help with hydroids

[kendaroo]

I have some rocks with little tiny colonial hydroids on them. What is the best way to remove them? I can't take the rocks out and boil them because I have a number of corals attached. :/ If I pluck them with tweezers, will I cause more harm than good?

 

[jenwebber3]

ditto for me if someone can answer for us. i have two patches on opposite sides of the tank; they don't seem to be spreading badly, but i'm sure they have the potential. heard they're hard to pluck, and i, too, am unable to remove the rocks.

 

[Peter T]

I have heard that aiptasia-x works well with them. I also have been told that covering them with kalkwasser paste works. The only method I have tried (it worked) was tweezers.

A method I am curious about is superglue gel. I've used this for vermetid snails aggravating my zoas so I wonder if it will work for the hydroids as well.

 

[Jeremy Snyder]

ccritters.com has a hydroid eating nudibranch. She is often out though.