I just went out and bought a Zoo Med Worm Feeder and it works amazingly, I've never seen my baby so happy to hunt in my life! I totally recommend it! It's a cup with holes drilled into the bottom so that the worms wiggle around when they are trying to get out. When your cham sees the movement they strike. I think its meant for bigger worms though, and it helps with target practice. (I know my cham needs work on that) I recommend you try it. And No, I Was Not Paid To Post This.