I have 2 Biota Angels as you can see from this pic. The Regal is in the back to the left about 2 months old and the Venustas about 1 week. I acclimated both in a box as you can see for about a week before releasing into gen population. The Regal came shy, small and took his time to eat. I made sure there was food (frozen brine and mysis, pellets) for him to pick at in the box whether he wanted it or not. Eventually within the week he started eating both and was released but only started eating with gusto in the coming weeks as he started to dominate the tank. I still target feed him to keep him fat. His tank mates were only chromis and cardinal until I got the Venustas last week. The Venustas didnt eat for about 5 days while acclimating in the box. His stomach was really emaciated. I also made sure there was food in the box both frozen and pellets at all times and would vacuum uneaten food multiple times daily. He would never eat in front of me but i noticed the stomach be less emaciated one morning and concluded he was definitely eating off the fauna on the live rock i kept with him, or eating the food sitting on the bottom when i wasnt looking. Today the Venustas will only eat frozen brine so far, but eats until his belly is fat. It is target fed along with the Regal, but doing pretty well now.