I totally get that. If I had the cash I would have grabbed a CB multibar, a CB regal, and a CB venustus. I wouldn't mind one of the navarchus either... but unfortunately my new fish and coral budget is zero until my next semester starts on campus.Got one about a week ago. I feed once a day and leave masstick in her isolation box for her to pick at throughout the day. She's somewhat shy still and doesn't usually eat in front of me, but the food is gone when I come back from work.
I will say in terms of hardiness, when the store I work at ordered CB navarchus for the first time, the shipment was delayed for 40 hours and both were perfectly fine after that. Sample size of two, but that seems like a decent indication to me about their hardiness.
Of course, any younger fish should have a consistent supply of food, that's a no brainer, especially with grazers like angelfish. That's why people are making a big deal out of the captive breeding: the fish has to WANT to eat for that to work. That's why these companies are focusing primarily on the rarer and harder to keep species, because 1: they make more money and 2: they can have people find success with fish that are normally not easy to keep. I just missed out on the round of CB multibars that were floating around, really kicking myself about that after having this regal and seeing how she acts.