This morning i took a look at my feather duster and it looked like the top of the tube was sliced off. the was just laying next to the rest of the tube. i didnt think anything of it. but i just looked at it now, and another 3/4 inch came off! What is it doing. is it doing that because my A hole maroon clown keeps blowing sand everywhere? my Coco worm seems to be fine extending his tube though.