What is this?

[hijackng]

What is this? It killing my coralline algae.
http://i46.photobucket.com/albums/f128/hijackng/sh.jpg
http://i46.photobucket.com/albums/f128/hijackng/sh2.jpg

[Tayler]

looks like a branching variety of corralline

[TheH]

Is it brittle or fleshy?

[hijackng]

its not brittle, need to pluck it off and its too tiny to call fleshy.
this thing spread fast and grow on my coralline and turn the coralline white.

[cashyboy]

Wow I have never seen anything like that, I will look around and fllow up, post if you have found out what it is, that looks very interesting.

[piercho]

Best guess is genus Ochtodes, but perhaps not the same species as "blue ball" sold in the hobby. In Ochtodes each individual branch grows in one plane or appears flat; however, the whole plant consisting of many branches, forms a bushy clump. (Marine plants of the Caribbean, 1989)