Need ID Please
 

What is this? Yes it is black and feels like a sponge. It pops up in a tank I maintain here in my town.
There's a couple of them in there.

http://i255.photobucket.com/albums/h...ube/NEtank.jpg

Looks like some kind of sponge.

Yes but what kind? The tips are hollow but not all the way through to to the bottom of the stalks.

That's a cool looking sponge if I ever saw one!

Yea it's cool.
But it's black. I've pulled pieces of it out and it just grows back.

I found this data base of sponges might help in IDing

https://www.google.com/fusiontables/...6901#rows:id=1

it looks like a creepy little hand to me. I like this game.

Tunicates possibly?

Anybody ever read the Spider-Man comic books with Venom?

Thanks but I can't find it on there.