Golden Butterfly, anyone has one?

Hi, thanks for reading, I have a 180 gallon tank so lets get that out of the way.
After a horrible fight broke out between my Blueface and Emperor I sold my Blueface today.
I am thinking of replacing it with a Golden Butterfly, rarely do I see it in my LFS but today is there for 85 dollars quiet expensive for a butterfly. When i can get a yellow tang for 20 dollars.
Any way right now is on top of my list, second would the golden angel or the golden flake angel (way expensive) but I already have a Flame angel.
Anyway the question I have are these fish easy to hand train to eat? I dont' expect them to be a Angel or Trigger. But at least comming near would be good? Of course I will do my best to train it in a QT tank.
Also are they middle feeders or floor feeders?
Are they outgoing or the shy type?
Do they swirl around the rocks are swim in the middle?
Are they the type that always look for food or just swimming aimlessly following the flow?
For some reason butterfly beside the copperband are not very popular. Very hard to find a good thread about them.
Never a butterfly lover.
Thanks
 
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