Very cute Pacman you have there. The substrate everyone recommends especially for pacmans would be coco fiber. They can eat it and it won't cause impaction. Make sure you go through the fiber to find any large or balled up substrate. My pacmen personally love crickets and earthworms and that is their stable diet for now until I get my dubia colony going. Keep them between 80-83 degrees, humidiy 80%. If using lighting The albinos lighting should be infrared. Normal lighting will cause them to go blind.