i switched my bp from aspen to zilla coco husks the fine stuff not the big chunks due to humidity problems. now when i feed and hes in the process of maneuvering things around the mouse picks up quite a bit of the substrate. i know this stuff can be passed but i dont want to run into any impaction problems and i want to get rid of this stuff asap if it is a problem im thinking about getting a tub just for feeding but i dont know how that will work out he has a good appetite now and i dont want to ruin that