Baby Panther eating little to no crickets a day

Had him for a couple weeks, cup feeding him small crickets dusted with calcium powder. He is eating very few of them, I give him 12-15 and he only eats 3-5 a day. I've heard theyre supposed to be voracious eaters. I took some pics of the tank, lights are right on top including an ExoTerra UVB100, and a 75w basking lamp. Reaches about 84 in basking spots, mid range about 75, dropping to 70 at the bottom. He is acting totally normal, although i guess i havent seen much poop, although it is there, with a urate too.

How big are the crickets? How did he eat where you got him from? Cup or free range?
I think you'll need some more foliage. Plenty of places to hide and he may feel more secure eating.
Kath.

That cage is pretty big for him, so he may feel a little scared. Definitely add for foliage and vines/branches in there. He'll thank you for it.

I dont know how he ate where i got him from, and the crickets are pretty small, smaller than a fingernail.

Try using a shallower cup too. It may be hard for his tongue to reach them in that one. Also, if he falls in he won't be able to get back out.