some type of softy coral or maybe a sponge?

[cajonez]

I noticed this guy a few weeks ago. It is made up of a bunch "pods". There are about 3 pods that make up the center and then a semicircle of pods around it. In total it is about 1/4" diameter. It has been getting bigger since I noticed it, but not the size of the pods, just the number. I suspect within a week or 2 they will have formed a complete circle around the center.
I am thinking it might not be a sponge because it is on the top of the rock, not underneath where it wouldnt get any light.

 

[mr.clownfish]

my guess would be some kind of mushroom or leather. but i cant really tell from the pic. is there anyway u can focus the camera lens a little more?

 

[spanko]

First off sponges usually do grow in low light areas like on the bottom sides of rocks.
As for an ID the picture is too blurry. Can you get a better closer pic?

 

[cajonez]

That was the best picture out of about 10 that I took. My camera is not good at taking pictures of the tank. I will try again when football is over in a bit.

 

[renogaw]

best way i've taken pics is to use the "self portrait" setting on my camera. also, DON'T zoom in on it. just go about half way in.

 

[cajonez]

This is about the best I can do. It is at a angle to the front of the glass so its hard to get a good shot.