I have a 105 gal with about 100 lbs of rock and 60 lbs of sand. I have a Vertex Alpha 170 with Auto Cleaner and 2 MP40's and 1 MP10. I have a 40 gal DIY refugium/sump. I also am using 2 Radion pros with 2 48" VHOs along with an Apex. I have a small Frag tank set up for QT and it is currently using a 6 bulb T5 light