Opinions please. I keep a 5 G QT going all the time. I have 3 cherry barbs that I put in there this morning to treat. Only tank I had. They are chasing each other around. Sadly, one of my bettas died this morning so I now have a 10G empty. I cleaned it out though and dried it so no longer cycled. I’d like to just leave the barbs in the 5 although I know it is small but it’s only for a few das. Would you leave them or set the 10G back up with the 5G filter? I’m tired after cleaning 12 tanks today and breaking the one down but want to do what’s best for the fish. Opinions?