ID please

[incapearl]

I know this one is probably easy but I'm not sure what it is. I got this rock from a fellow RC reefer about 6 months ago cause it had a lot of mushrooms on it. Recently within the last month or so, this thing grew like crazy. Looks like some sort of leather or mushroom. It's getting big fast. Has a bright florescent green center mouth and it also has a stalk like a leather. Sorry the images are bad, they're with my iPhone. Thanks guys.

 

[evolved]

It's definitely a corallimorph (mushroom), but I'd need to see the top of it to go further. Possibly a yuma (ricordia) else a rhodactis.

 

[incapearl]

Nice, yes I think it's a yuma. Thank you!