Hair worms????

[cmathers]

So, heres the deal. I work at a fish store in Central CT And over the past sevral months every fish that has gone into this particular system has died, we have nicknamed them the death tanks, until now we have had no explanation as to why these fish died, the only thing that has lived are brittle stars. So here is what we believe to be the problem, nobody whos come in has properly been able to ID them so I'm throwing the bone to you guys, let me know what you think.

 

[cloak]

It looks like a harmless Terebellid worm to me. I highly doubt that these have anything to do with the mortalities your experiencing.

http://www.lionfishlair.com/hitchhiker/hitchhiker.shtml

 

[rssjsb]

Agreed. These guys are beneficial and wouldn't be any risk to a non-dead fish.