At his age....I would put calcium on all of his meals except for the greens. I would also be giving him 3x the amount of crickets per feeding 2x per day. Also, Hornworms are the absolute best for adding weight and size. Kane is a little picky. Lately he only wants hornworms. He was down to 630 grams one month ago after brumation. I just weighted him today. I give him 3 large hornworms a day plus his greens. He has to eat other things. He is back to 700g and still has to completly fill out. As soon as my roach coloney is back up and running I am going to try to switch him back to roaches.
Those two feeders will work wonders for any dragon, providing you can get them to eat it.
Ernie