I have had a coco worm for about 3 weeks now. When it extends out of the tube it appears to have 2 feathery "heads". It has stayed inside it's tube for the last 3 days. (Based on the 1st 2.5 weeks, this seemed odd.) I tried to feed it cyclopeze last night. Tonight, to my horror, I saw an inch long piece to the feathery worm part on the sand near the tube! Inside the tube, there it more "feathery worm". Were there 2 worms inside the tube? Why did one leave? Will it survive? What shout I do?