don't have to have LR
put couple pvc
in it for livestock to hide/swim with, that should be fine.
I don't run my QT all the time, I only use it when I need to.
so everytime I need to use it, I add my DT water to the QT and run a HOB
filter that I have it in my sump + a heater.
Thanks to AMD, HN1, Zero, partypalooza, thincat, and thominil who helped me in almost every questions. Thanks everyone!!!!!