Orange Slime. Sponge? Algae?

[TheFishTickler]

Best picture I got for today. What the heck is this orange thing? I have search the forum for hours for an ID, no luck.

 

[blaxsun]

I'm going to go with "Sponge for $200 Alex".

 

[vetteguy53081]

Looks like encrusting sponge known as Orange Encrusting Sponge (Ptilocaulis sp.)