Patience and persistence

Some animal (hatchlings/juvy) can be switched a little easier than others but it really depends on the animal.

The trick is to offer F/T and nothing else, of course this require the animal to have a good body weight because it might take weeks or months before the switch.

For now though this should not be an immediate concern your first concern is to have the animal eating for you and do so consistently for at least 3 to 5 feedings before attempting to switch.