Supplementing my ACF's diet

[RockyGurly]

Hi all!
Thanks to everyone's wonderful help, my ACF is eating really well! He's even come up to weight since I got him. He'll eat 2 pellets every night or every other night, but I think he'd eat more if I let him (just worried about over-feeding, unless I shouldn't be?)
Anyways I'd like to make sure he's getting everything he needs. I especially worry about MBD with all my herps and I have a calcium supplement with D3 added to dust food in. I was wondering what kind of feeder insects I can offer him, how often, and how often I should be dusting? I have mealworms, night crawlers (he loves those) crickets and isopods.
Also as a random side note, if anyone has cresties, what do you supplement with? I serve mine (along with her CGD) mushed up mango or peach or banana, and the occasional dusted cricket.
Oh, also a picture of his setup as of late so far he's been loving the plants, I've managed to keep them all mostly alive (thank god) but the anubia is doing particularly well and growing like crazy. I've added a new leafy looking plant since these pictures that he likes to rest on

(Yea, I have to get rid of all the ugly stickers on the tank. The kid who had him before covered the tank in crud)
Anyways, any suggestions would be greatly appreciated Besides my crestie, I'm still getting the hang of herps.