Digitate hydroid questions

EDIT: just realized i put digita ment Digitate hydroids sorry bout that

today i found two of these guys in my tank. I dont know much about them except they can give use a very powerful sting if we touch them. But i want to know what your experiences with these things are and are they ok with coral and fish. Also in the tanks 7 months this is the first time ive seen them

 

bump

 

If there's only two, it's not much of a concern. Scrub them off with a toothbrush.

 

ok yea ive only seen these two so far if left in the tank would they harm the corals or fish at all. I worry about touching them, my skin reacts extremly sensitive to almost anything in my tank like my arm burns after each time im working in the tank, got pink eye, got stung by my sea urchin *surprisingly no reaction* so i worry if i get stung by these guys that i would have another really bad reaction. would they be able to sting through laytex gloves?

 

they can and will sting nearby corals. They will sting you too. Gloves will protect you though.

 

ok their still out so hopefully i will be able to get them

 

I don't ever see them causing issues. As far as I know, they are similar to (in actions) to vermetid snails. They can irritate corals, but not harm them.

Why another thread?
http://www.3reef.com/forums/id/any-idea-82913.html

 

Ctenophores are different from digitate hydroids.

 

I thought mine were digitate hydroids.....according to the melev ID they are...Melevsreef.com - Digitate Hydroid

 

I have torn down my first tank because of these. They will spread rapidly. I tried everything under the sun to get rid of em to no avail. And they will also sting you not just the corals and fish. I wish you luck. I have a old thread on here from my bout with them.