What this on my live rock?

getting a good freebie is great before and after knowing its in your tank. getting a bad freebie makes for a bad day after its in your tank and didnt know you put it in there. and nothing good happens in this hobby fast.

 

Well, I was looking at the rock again and now I found something that looks like a sea cucumber but it is red and a couple of inches long. I ran to get the camera and when I got backs it was almost in a hole. Do you have any idea if it is bad? I will try to get a picture if it comes out again.

 

It is amazing what you can get with you live rock.......when i was buying some the other day i was going to get this hug peice probably weighing 40 pounds ( thats why i dindt get it...i didnt need that much)........but i saw something poke out and there was a snow flake eal in it..... ireally wanted it beasue the guy even said to me that that rock has an eal in it andd were not charging for the eal !!!!!! pretty sweet what u can get

 

Jamie- the "red thing" sticking out was probably a bistle worm, good stuff.

 

ohohohoh! i got stomatella snails, feather dusters, florida ricordia's and even acans on my LR as freebies! then again, my lfs grows corals in the LR vats big Vats that is with shelves too