I always use a QT and do a fresh water dip then QT for 3-4 weeks my QT tank is a 20aga in the cabinet with a aquaclear 500 and a 150w heater and some pvc pipes for hiding places. All I do is start with a empty tank do a 20G water change in the display tank by draining it into the QT put in carbon and a sponge filter from the sump into the AC 500 plug in the heater, light, pvc pipe, add fish, corals ect..... monitor water parameters and livestock ect... and then the hard part, wait 3-4weeks. This method has worked well for me.