I've had him for a month in QT. He's been in copper (I now put my puffers and tangs through copper on a prophylactic basis because from my experience they always seem to carry ich). He's only 2-3", so my QT at 65 gallons is very nice for him. He is very healthy based on fact that he swims very actively and eats. In fact, it was quite a challenge to retrieve him for this shot.