What's this?

[Scutterborn]

Not sure what forum to put this in until I know what this is.
http://img.tapatalk.com/d/12/09/04/da5edumy.jpg
http://img.tapatalk.com/d/12/09/04/naba2a8y.jpg

It showed up about two days ago on some LR that came out of another members sump. The rock has been un the tank for about 45-60 days.
It's about the size of a nickel and dime ( from left to right). The pics make it look more opaque than it really does look like with the naked eye.


- Ben -

[allan]

"gee, Ben, I don't know what that is."

[reefreak]

It looks like a leather or a sponge.

[Scutterborn]

No other ideas?


-Ben-

[SABOB]

I dunno, "Better call Ghostbusters"


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[BBQHILLBILLY]

jelly

[Europhyllia]

how does it feel? is it completely water filled and squishy? or does it have some inside structure?

[Scutterborn]

Not sure how it feels. I'll stick my hand in tomorrow and get a feel of it. It looks as though it would feel like a jelly sac.


-Ben-

[mkengr45]

Curious what it feels like. Looks like old super glue from fragging, but if you say it just showed up that couldn't be it.

[reefreak]

Im thinking if it came from a sump its probably a sponge.

[profntbtr]

i'm going with ulva lactuca. it is a common macroalgae, although it looks a little bleached out, i can say with 85% certainty that that is what it is.