black stuff!!!!!!

[becki boggs]

looks almost like black lava on the rock ,

 

[flyyyguy]

need a pic....i have some stuff like that as well

 

[dallasdallaghan]

Is it on the under side of your live rock and does it nearly look like black plastic that was melted?!!! even a little bit EVIL ?? i so i,ve had it in my aquarium for three years with no problems its very slow growing i think i read somewhere that its a sort of sponge

 

[Konadog]

Here's a bad picture of black sponge (before I knew how to white balance). Does it look anything like this:

 

[becki boggs]

yes it does look like this ,so i guess it is harmless, thanks alot

 

[becki boggs]

it is on top of the rock

 

[ReefEze]

Sponge I would say... don't worry, unless its dead...