I'd just feed him and make him sit still. Pushing that hard is him trying to tell you he's hungry in most cases. Or that something else about his husbandry is bothering him. If temps and humidity are good then feed him and make him be quiet. No reason in my opinion to try for a two week+ feeding interval unless you're trying to keep him smaller or get him to lose weight, and he looks perfectly healthy. Retics are very proactive about telling you when they want to eat.