THERE IS 120 LBS OF BLACK LIVE SAND AND ABOUT 100 PLUS LBS OF DRY ROCK AND ABOUT 50 LBS OF LIVE ROCK IN THE NEW SET UP. I ALSO RUN CARBON FILTER PADS IN THE SUM OVERFLOW TO THE RETURN CHAMBER.THE REFUGIUM CHAMBER HAS A 8 LB LIVE ROCK AND ECO SYSTEMS MIRICLE MUD BASE, IT ALSO HAS SEVERAL DIFFERENT TYPES OF ALGAE.