Jan,
Assuming you are referring to a fish QT. . .The usual instructions is, as you have been informed, to make a water change every two days when performing a hyposalinity treatment. I understand your frustration with this. I have never done this. :evil: I just monitor the water for proper quality and, if the bubbles from the corner sponge filter 'linger too long' on the surface, make a large water change to export some organics.
At any time I get nitrite or ammonia readings, a large water change is in order (sometimes twice a day, if necessary).
I don't believe a hospital or QT must be kept running. Really the only functional aspect of the QT or hospital tank that is needed on a 'standby basis' is the biological filter. I keep a QT dry and clean ready for action, but I keep a corner, sponge filter in the main system so it will be seeded with functional bacteria that I can then be placed into the QT which can be setup in a few minutes.
Assuming you are referring to a fish QT. . .The usual instructions is, as you have been informed, to make a water change every two days when performing a hyposalinity treatment. I understand your frustration with this. I have never done this. :evil: I just monitor the water for proper quality and, if the bubbles from the corner sponge filter 'linger too long' on the surface, make a large water change to export some organics.
At any time I get nitrite or ammonia readings, a large water change is in order (sometimes twice a day, if necessary).
I don't believe a hospital or QT must be kept running. Really the only functional aspect of the QT or hospital tank that is needed on a 'standby basis' is the biological filter. I keep a QT dry and clean ready for action, but I keep a corner, sponge filter in the main system so it will be seeded with functional bacteria that I can then be placed into the QT which can be setup in a few minutes.