Might be a dumb question but my dragon does not eat like he did as a baby or juvie..Will the dubia's actually get to old? I don't mean in size but just old and not good to feed..Thanks
No they won't get too old to feed. If you keep offering them veg scraps and shelter they should be just fine and will eventually start a colony. That will give you a constant source of bugs that will renew on it's own.