Please also keep in mind that the frogs food should be no larger than the distance between his eyes. This means that you may have to cut the worm into bite sized pieces. Tong feeding is helpful if he'll take the food that way.

I would recommend you get some Repashy calcium plus for his multivitamin. It has a bit of vitamin A in it and is a great supplement. You'll still need the Calcium with vitamin D3 every other feeding. I use Repashy one day a week for my horned frogs. No calcium/D3 on Repashy day, except what is in the already made Repashy.