My opinion would be to change it. At his age he would probably be o.k. with the playsand, provided he's not a clumsy eater. Funny thing is, it's much cheaper than the sand you bought at the pet store. The problem with that stuff is if it gets wet it clumps...give it a try and see what happens. So you can imagine what it does in their little stomachs. For now, you may just want to put him on shelf liner or paper towels until you get to know him and how he eats. I'll answer as many questions as I can. Just keep me updated.