what is this growing on my rock

[donj4077]

is this good or bad? if bad how should i remove it? thanks for your help.

 

[redsea reefer]

need bigger pics, too small to see...

 

[nanoreefing4fun]

http://www.reefsanctuary.com/forums...ay-post-pics-photobucket-nanoreefing4fun.html

check out post #7 to enlarge pics

 

[donj4077]

hope this pic is better

 

[tnwillia]

My guess is sponge, Have fun!

 

[Frankie]

My guess is sponge, Have fun!

Maybe.
What does it feel like? If you could try and get the nearest picture possible in focus it would help a lot.
what are you using, your cell?