Quarantine tank system

[jinbing0905]

I just want if there no fish in the quarantine tank, Should we keep the tank running with empty fish or what should we do with the empty tank.

 

[Humblefish]

You can keep a QT running with no fish for a few months. But after that I would break down & sterilize everything to avoid biofilm: https://www.reef2reef.com/threads/qt-and-biofilm.292878/

 

[jinbing0905]

just air bubble in the tanks and when we do water change from main tank we can put it in the qt.