You could use reptivite without d3, but you would need calcium with d3 to give him also.
It would be ok to supplement with:
Plain calcium with almost every feeder
Reptivite (with d3) twice a month
It would be wise to research into supplementation & proper gutloading. I can post some links if you like?
EDIT: others use Repashy calcium plus which is designed to use with almost every feeder. It has vitamins a, d & e all in the correct (according to Repashy) ratio.