Can anyone identify these?

[aquareefer]

I need some help in identifying these critters...

 

[aquareefer]

I think they might be hydroids.....anyone have any information about these critters? Are they harmful?

 

[reefreak29]

not really harmful and usually go away on there own

 

[miaheatlvr]

Originally Posted by aquareefer
I think they might be hydroids.....anyone have any information about these critters? Are they harmful?

Hes right hydroid jellyies!