I thought using my sump once...just to make a fish rest after a fight !!!
As an hospital...if you use any remedy (cupper or Melafix)...you don't want that in your main tank....or stop your sump...hummmm
My 10 gallons hospital....is like a small refugium....sometime I let a cleaner shrimp...and a few snail...just for the look and to keep the cycle...and remove them before putting any fish for treatment...
A 10 gallons tanks with a small heater and filter cost not much...and i do water change only before (from the main tank) and after (new water) treatment...
Pierre
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