what is it

phnc

New member
Can someone identify this and tell me if it is good or bad?

119572P1010084.JPG


http://reefcentral.com/gallery/data/500/119572P1010085.JPG
 
Does it move? It looks like a sponge to me. If you do not observe any harm to surrounding corals etc., leave it. If starts to cause problems; e.g. over grows, or damages tissue of nearby corals take it out.

If it is moving I would need another picture to tell what it is. Sorry, maybe someone else here will recognize it.
 
I have a handsome black longspine urchin that will keep sponges like that from spreading (along with a lot of other things, like algae!).

Brad
 
Any chance he eats red bubble type looking algae? I have a huge freaking infestation of that in my tank.
 
I can't say for certain, but I don't know of anything it won't eat other than soft coral tissue. When I hang Nori for my tang and lawnmower blenny, he often makes a beeline for it. I'm not sure how much the tang or blenny get.

I know it eats hair algae and coralline algae and sometimes nips sps corals if they're small enough frags that they don't present a large enough profile to prevent it. I know I did have some valonia (bubble algae) in the tank for a while, and I just checked and couldn't see any. I don't think anyone else in there eats it.

I think if its mouth can get close to it and it's hard or smells like algae, it will eat it. It leaves LPS and softies alone as far as I can tell.

It's an interesting creature (it is everyone's favorite spectacle in the tank, but it's not compatible with some of my future species so at some point I want to trade it out if I can, or just drop it in a refugium).

Brad
 
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