I recently saw the video of one of these tank-raised ones feeding - I was struck with how languidly the fish fed, just like wild caught juveniles have for me in the past. Makes me believe that just getting a tank-rasied one won't overcome ALL the hurdles these fish have in captivity. For sure don't keep it in with any "nippy" fish, pinnatus just seem unable to get out of the way of other fish, and their fins don't grow back as quickly as do other batfish. I always keep juveniles in a tank by themselves. When the become sub-adults, you can house them with a variety of other fish.
Did you know that these batfish mimic a large toxic flatworm? In fact, if you spook a juvenile pinnatus, they often drop prostrate to the floor of the tank and lay there - just like a flatworm.