pinks should be considered an occasional treat. my leachies go for fruit mash more then crickets, i do about 5 twice a week for my adults. When they were juvies, they were fed fruit mash and crickets, pinks as a VERY occasional treat, and that probably didnt start till they were at least 6 months old.
mine eat, fruit and crickets twice a week, 1 pink once a week. they eat only live, mostly because i dont take the time to try f/t, and i breed my own rodents. if hes not eating, what are your temperatures like? do you introduce them to the fruit mash instead of just popping it into the cage? [like dipping his nose in it?] what i have found is that my leachies dont really like alot of crickets. ive just started breeding roaches, so ill find out soon enough how they like those.
also, my leachies dont take pinks as well as id like them to. if anything i force feed them to bulk them up. my auriculatus on the other hand LOVE them. which is nice, because then its not a fight.