help identify this sponge
 

Hi all can someone please help identify this?Is it bad?don't know how to attach picture but the picture is in my gallery thanks Paul

I've got something like that as well.. Hopfully you will get a reply so I find out 2.

I have many different sponges in my tank, including this one. To date they haven't done anything bad that I can see, unless you include filtering your water a bad thing :biggrin:

Sponges are cool, and those ones will help solidify your aquascaping by holding all your rock in place :wink:

I have some wicked fluorescent yellow ones. I love them :cool:

I have quite a few like that and some of the yellow ones in my tank. They are great.

Thanks everyone for your responses and thank you who ever posted the picture for me. Paul