So I just pulled one collony of these green tubular midgidgers off of a peice of live rock. Algea? Something else? My blenny, sanils and crabs won't touch the stuff. I have two or three other areas with it as well, same size. They are pretty tough, hard to pop or squish. Reminds me of an egg sack.

thanks.

Looks like bubble algae

Bingo.

Yes, that is what it is. I was dreading admiting it but it is small. I only have a few groups, it will be picked off!! thanks!

Colony*