I am building my first reef tank and I need advice on selecting rocks. I know I want dry live rock. I am willing to go through a longer start up in order to avoid unwanted hitchhikers. My tank is 85 gallons, 24 inches x 48 inches x 17 inches (tall). The attached picture is what I'd like to achieve in the aquascape. I'd like recommendations on the type(s) and amount of rock you think I will need to achieve this effect. Thanks in advance!