Thinking I may try this soon, I hand feed earthworm pieces, and then also two cubes of blood worms, I thaw the blood werms and then use a fork to create two seperate area with the worms, Stitch is very stingy or territorial or something, stitch will see Tater eating and walk over to Tater and bite em. Tater has learned this and will move before Stitch gets to close, But they both love the bloodworms and make a huge area covered in worms. They clean up ever single worm every time, I clean their tank daily with a net to capture all the Poop and left over food and All I ever find is poop. my only concern with a jar is that Stitch will corner Tater and go on the attack. I may try it and see how it works.