what is this????

[clearaquariums]

hey there guys can anyone tell me what this is ? got some of it growing on several rocks....

 

[triksrevival]

Looks like clove polyps. I had some similar, but they were blue. They spread incredibly fast and started to cover other corals/ inhibit growth.

 

[Ron Reefman]

In time you'll have them growing all over everything.

 

[cloak]

I agree with the others, worst coral I ever added to my tank. :thumbdown

If it's not too much trouble, you might want to remove the rocks there on and use a wire brush to scrape them off in a separate container of water. Smothering them with some epoxy is another option. GL.