I remember when mine were that sz. They were insane during feeding time. Seemed like they were just as hungry after the 10th cricket as they were the first lol. They ate anywhere from 5-10 small crickets along with cut up worms. Check out your local Walmart & grab a tub of 20 Canadian nightcrawlers in the fishing section. They should be right around $3. Make sure to open the lid and inspect them first! Poke the dirt or shake the tub a little to see if theyre lively. I have come across a bad batch one time or another. Some Walmarts may not be on top of their stock so always check first. And of course at this sz, be sure to cut them up. Good luck w your new pyxi!