bearded dragon won't eat

I just got a bearded dragon and i had him in a 10 gallon tank. i realized it would be much too small for him eventually so i moved him into a 60 gallon tank. its about a constant 85-90 degrees and his basking area is about 100. humidity is at about 40%. i am aware all of the controversey of using crushed walnut, but its a pretty fine grain and not sharp at all, i will replace this if i must. my dragon today isn't eating very well, he is healthy and moving around alot but he won't eat like he used to. just curious if any one has suggestions. i know about the problems with crushed walnut but i dont think that would have much to do with his appetite and i also cant seem to get him to eat any thing but crickets, i have tried alot of different veggies and what not but its all he will touch.... any help would be much appreciated thanks

Kiteman6 years ago
http://en.wikipedia.org/wiki/Bearded_dragons_as_pets#Diet

Food preferences may be age-related.

For veggies, it seems leafy greens are the preference.