What is this?

[nybyrne]

Have this stuff growing off of my mushroom rock. It is white and has been there for about 3 weeks. Hope the picture is clear enough. Thanks

 

[seabry]

they look like blue-stripped mushrooms

 

[nybyrne]

Thanks, but I know there are mushrooms in the picture I ment the thing on the sides.

 

[bang guy]

Sponge

 

[nybyrne]

would you suggest to leave it there? Is sponge a good thing? Thanks

 

[j21kickster]

sponge = good- next time if you want to show something white- dont use actinics