Pyxies like to bury themselves away every now and then.. I would just give it a few crickets 2 or 3 times a week. you dont need to feed it everyday. they WILL eat everyday though just feed it up nice n fat then ket it process the food then feed it up again.. always dust with calcium and give it vitamins once a week. dont worry about it burrowing away though. mine does it all the time. so do my Horned Frogs. any pics? if u do post them in the Pyxie thred! any other questions just ask.
I have two and they're both act very different from each other. The larger one likes to hang out in it's waterdish, while the smaller one likes to dig and bury itself all the time. I'll have to dig it out for feeding
How is your setup like? Do you have a waterdish in the enclosure?