New QT or Back-Up tank

[George]

Other than the tank, you will need an aquaclear filter with some foams, a heater, some PVC for your fish to hide, and a powerhead or an airpump. Sometime I find that aquaclear filters don't aerate water enough. That's why you need a powerhear or airpump to increase O2 level, especially when you do something like prazipro where it depletes O2 in your water.
I would skip rock rubbles. First of all, rocks can absorb medications. Also some medic will kill off bacteria in your live rock. Live rocks also make hypo difficult.