Hi everyone! My boys and I are new to the reef tank world and this forum. After years of wanting to cross over from fresh to salt I finally got the courage (with lots of help) to take the plunge. So happy to be here and hope to learn as much as we can from all of you guys and girls! My question is this....we are baby stepping with our 40g breeder and have a few chromis, a trumpet frag and brought home a few hermit crabs for a little cleanup today. We also brought some empty shells home and one of the shells (that we thought was empty) had this critter in it. Is this a type of bristle worm?? Whatever it is should I allow it to continue to live in our tank or should we "cast him out"? Currently we still have it quarantined, awaiting your guidance.. I really appreciate any help.