ID help please

[ejlittle]

Ok, I tried to upload a pic but my computer won't do it for some reason. I just bought some live rock from an established system. It has tons of mushrooms on it. They are really random, not in a colony. They are light pink with some green, fairly translucent. Any ideas what they might be? It also has yellow stuff on it. The yellow stuff is flat against the rock. Any ideas?

 

[aquabull]

Some mushrooms that are in inadequate light (shade, burned out lamps, etc.), will have less algae in their tissue, thereby appearing translucent. The yellow stuff hugging the rock is most likely a form of sponge.