Are the worms appropriete size? Tge rule of thumb that we use is not to feed any thing longer than the width between their eyes. Worms can be a little longer. Try some silk w orms or horn worms. I get mine from lindas gone buggie. Dont be discouraged he only likes crickets they are easy to gut load and can be a good staple feeder, all 3 of my chams go crazy for crickets but only 2 will eat dubia roaches. In the little box on the left of the screen there is the.care resources. I would check that out and there will be pretty much evrrything you need to know about your veiled. Feeding, lighting, enclosure, humidity gut loading and all that good stuff. Hope this helps and good luck!