Feeding time with Skeletor + video

So far he won't touch the pellets of either kind I have around the house, but he will take crickets of three different species (two of which I find in the yard or in the house). He is still in quarantine, he will be until the 1st of October (that's my standard time for quarantining a new reptile, especially wild caught ones to be introduced to new possible friends in my miniature zoo here). His temporary tub is cleaned out every day to every other day. 

I'd like to feed him something other than just crickets though, and there isn't a lot of information online. More natural food source ideas are welcome! 

Here's a somewhat lengthy video of three different feeding times in one: youtu.be/A53efQ9M0TQ?list=UUmT…