I wanted to run about 1 pound and a half to 2 pounds per gallon. I came across a great deal and picked up 212 pounds of Lr for 150 bucks. Since my tank in not fully cycled yet I scrubbed it with a brush then placed it how I wanted into the tank. Is this enough rock? My tank is 130 gallons but my full system is 180. I am going to pick up about 20 pounds for my refugium. But do I measure the amount I need for the entire system or do I go by just the display tank? Or is it more or less about The look