i was wondering what fruits are low in phosphorus, because i give my gliders applesauce every-so-often, and i know that it is high in phos. also, what foods do they actually like that contains calcium? i tried yogurt and cottage cheese but they won't eat it. i tried eggshell, because in a sugarglider book, it said that they eat eggshells, but they dont eat that either. what should i try? thanks