Help with ID
 

Okay I've got an invert that's growing rather quickly. I'm not sure if it's some kind of sponge (seems to like light) No algae grows on it, it has a look and feel of very thin paper. It's water filled and if you wave your hand close to it, it will flutter (poor discription) as if it were air filled. It's a lime green/flesh colour. Any thoughts?
http://www.canreef.com/photopost/dat...1-med.JPG?1583

Thanks, Doug

That's just crazy! :eek:
No other material/skeleton, other than just liquid filled flesh? Any polyps, tentacles? Any different activity/inflation/deflation at night?
How long did it take to grow that large?
Has your hand turned green yet from touching it? :mrgreen:

Mitch

Mitch it's been about 4 months for it to grow that big. it has a few vent type openings similar to a sponge. It will deflate if bumped etc but it will fill up again quickly. Sometimes I've noticed a mucous type thing just after feeding the tank but not often. I'm baffled by it.

Doug

Well it doesn't look like the ones I've seen, but from your description, how about a tunicate?

did some reading in my library it seem like it from the ascidian family .there more like a sea squirt than tunicate . ihave a few diferant types in my tank not the exact type you have . if it gets larger and you want to get ride of some id be interested . :biggrin:

Uhh... sea squirts are tunicates... :razz: Perhaps Christy or another individual with more knowledge of biology could elaborate, but my understanding is that sea squirts are a type of ascidian which is a type of tunicate.

Yup, tunicates and sea squirts and ascidians are the same thing. Ascidian is the latin name, sea squirt is the common name and Tunicata is the subphylum I believe.

This doesn't look like a sea squirt to me tho. I'll check my books when I get home after work. I think I've seen something like this before though.

Christy :)

Doug why not ask Shimek on his forum and maybe email Fenner? Their scientific practice aside, they are pretty good with IDs. :biggrin:

I think it looks like asteropus sarassinorum (starpore sponge)- baensch atlas volume 2 page 28?

looks cool, but if it is a sponge and you are holding it out of the water, there is a chance you just killed it. :eek:

Steve