I have a copperband in my DT going on 3 years (along with a tang, dwarf angels, gramma, maroon clown pair) that will hand feed and will practically swim inside the food cup to eat . Its also the only fish in the tank that doesn't hide when I have my hands or a giant net in the water. A month ago, I ended up with two longnoses, kept in two different QT's, and both of them very quickly recognized the feeder cup and swim to meet it . Both longnoses never hide and both were charging to the cup like lightning within a few days of getting them. Is this just an anomaly, or are butterflies just more bold than other fish , as far as with people, not other fish?