Originally posted by johnnyxxl
the shutoff valve would be nice for other things but in my thoughts almost useless for disease control remember that water has been filtering for some time has contaminated the whole system already by the time you see the first sick fish. Imagine, humans being sick you were exposed to the sick person 1,2, 3 days or weeks ago so you don't necessarily know who got you sick.
I tknk the shut off is nice for locking the tank out of system due to mainantce things like leaks or other things.
Before when I was talking water modifications, I was thinking adjusting the params to what the various fish want. I know most of us in FW use tap water.
