Hi there ! First off... Congrates on your baby !
Now... let's start out with the correct foods...
http://www.beautifuldragons.503xtreme.com/Nutrition.html
Daily staples are in Green... Treats 1-2 times a week are in Black.
Now... you should be feeding this lil fellow 3 times a day with the crickets, enough over a 10-15 minute time period to let him eat his fill. Start his day off with a salad, the follow up with the insects...
The size of the feeders should be no longer than the distance between his eyes, to avoid blocking up his intestinal track.
Just out of curiosity... 4-6 months... or 4-6 weeks ? Do you have a hatch date ? Or was this a pet store baby ?
Regardless, he is young enough to grow considerably.
Make sure that the "meals" are far apart enough to allow an hour to two hours basking time, so he can properly digest the insects.
Now, could you do me a favor, and list which lights you are using, heat/uvb... as well as any supplements, cal/vitamins by brand name, and what is in his enclosure for substrate, basking site, and hide if any...
Thanks !
Janie