ReefALot
Well if you have any more of those rocks I could show you what it came from. A black spot with 4 spikes sticking out, they grow, and I actually like the shape of it, looks really nice for a green macro.
The thing I have no clue about is orange, and I seen I have serveral, I wouldn't really worry except that it can move, but it isn't hairy and it isn't just straight like a worm. I hope one stays alive til Saturday, got one in a cup I can bring over.
Sent the rest in a PM.