white moss growing on rocks

[chasesng]

Just noticed patches of white moss, almost like packed spider webb material, inside a bunch of my rocks.

ID?

good bad or indifferent?

how can i control it?

thanks

 

[marrone]

Need to see a picture but it's probably some type of sponge. It's a good thing but some people have had problems with them growing on rocks and taking over some corals. I wouldn't worry about it.

 

[jasno999]

Yes can you post a picture for us?

 

[Seadog09]

sponge

sounds like sponge from the discription. got the same thing. don't like it but its harmless.:tired:

 

[crox99]

Yep it sounds like a sponge.:bigeyes:

 

[loismustdie]

If it looks like a "spider web" material, it may be a type of snail which is a stationary type snail. It sends out a mucous, which looks like a spider web, in order to catch food. I bet the web is thicker when you feed the tank.
Either way, if my description fits, it's a harmless sessile snail. Beneficial if you ask me.
Either way, you should post pics so we can be sure.

 

[Vision06]

It's a sponge I have it growing on my rock also. Dont touch it tho, When I bought the rock the kid in the store touched it and said his hand was stinging afterwards.