Growing in my corals

[jon doe]

I don't know if I am supposed to post this question here, if not I am sorry.
I have this white stuff growing in between some corals of mine. It used to be larger, now it seems to be shrinking. I can't quite tell but it looks like it may be growing from the inside of the live rock.
Here is the best photo I could get of it right now.

You can see it in the main area and also some at the bottom right.

 

[reef dummy]

Probably a sponge.

 

[reefs reefs]

yea u would say a sponge to.

 

[nicoleblkwidow]

Sponge and it looks to be the same kind we have growing on our galaxea. It is very invasive and can take over corals! I would try to remove it. Exposing it to air (although that doesn't seem to phase it too much), scraping with tweezers and toothpick.

 

[ReefLady]

Looks like Leucosolenia sp (a sponge).

 

[Browns]

+1 sponge

 

[jon doe]

I moved this rock and there was a large hole in the bottom rock with all kinds of sponge in it.
I picked it out with tweezers little by little.
Thanks for the help.