ill take him! they are great to have in the tank...he would be a nice (if creepy) addition to the 150...
cool, where are you located?
I found one too but left it alone.They're good for something I suppose.
Looks like a common bristleworm to me also. Even moreso in the closeup. I'd be glad to have him out of my tank too. The thought of reaching into a crevice and meeting up with him doesn't appeal much to me.
swimmer