Unknown growth on live rock

[andy281]

I had this unknown growth on my live rock in the same exact spot about a month ago I removed it and it's back. I know it's hard to see sorry all I have is my iPhone. Any ideas what it is....


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[mr_X]

It looks like sponge to me. Nothing to worry about.

 

[Cichlid-dude]

I agree its a sponge.


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[andy281]

Great thanks for the replies !!


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