coral thing maybe?

[Anubis1]

Any ideas?.. It is pale green, just looking at it it has almost a velvety translucent appearance. It feels more like sandpaper though...

the woman who gave it to me didn't even know she had it in her tank... so she had no idea what it is either..

Sorry about the quality of the pics.. it's a crappy camera..

thanks!

 

[blackcloudmedia]

Sponge?