I have had a Coco Worm for about 3 months now. He has been doing great up until now. He has added about 1-1/2 inches of new tube in the last month. Now he seems to go into the tube more often and when he is out it does not extend it's feathers (for lack of better terms). It stays compact.\n \nWater perameters have not changed. No Nitrites, No Amonia and just a trace of Nitrates. The only thing new was a Orange Diamond Goby I added two weeks ago. Everything else seems healthy.\n \nI have heard that Coco Worms are not easy to keep. But from what looked like flourishing and growing to this with no explanaiton I dont get.