Well, I am no expert. The guy who sold me mine said not to use hopper style feed bins for these guys (the wire ones that hang) because they will continuosly chew the food up and leave a heck of a mess and three inches of chewed food on the ground. SO I feed mine in a dish (I don't know why I even bother with the dish, they drag the food all over). I feed my trio a lab block and mix in wellness senior dog food, peanuts, birdseed, some rat treats. and fruits and vegetables. Basically, I give them what is around and available, the lab block being the staple.
I keep mine in a glass tank, but I only have one trio to deal with, not multiples. Glass tanks can be a pain when you have more than a couple.
It is intereresting to see these guys as pinks. They have fur....well, a few sparse hairs but they aren't naked. They do kind of look like half fledged birds...lol....I can't wait to see some in my tank.