I would like to know alsoIf they only do well in a mature tank, how do they do in QT before going to the tank?
If they only do well in a mature tank, how do they do in QT before going to the tank?
IMO... 'Doing well in a mature tank' refers to long term success... A lot of fish can survive for weeks, even if they're not eating, which is something that can be addressed while in QT.
IMO/E Potters angel is a fish that can often survive for months in a tank and then suddenly die for no obvious reason, despite eating and seeming to 'do well'