Haha...no problem. You could easily run out of roaches feeding a pyxie. I think the key is not overfeeding, and also making sure you have a large colony before feeding them off. A friend of mine has a colony well into the thousands. He and I keep lobster roaches, which breed really fast when the temps are kept up. I'm pretty sure if the colony is that well established, running out wouldn't be a problem. Takes a lot of patience, though.