So, I found an ugly critter in my tank. Put it out there (to all of you) and the response was "leeches". I don't think so. Why? The critter did not die when salt was added to the mere tablespoon of water that I had the specimen in. It lived for days after. I did some research, and I think that I have come across a match with the description of the "worm". Has anybody out there had any experience with Camallanus.cotti? I have an awful feeling that is what I am dealing with here.