This live rock from Fiji is perfect for building reef aquariums and is easy enough to work with for hobbyists of all levels. It must be cured before it is placed in the tank, it requires moderate light source and this show size comes 20 to 28 inches long. 1 ¼-1 ¾ pounds of live rock per gallon of tank is recommended. Many fish will be able to use the rock for food, and it houses many organisms which will be helpful to the health of your tank. The large pieces can be divided up with a hammer to accommodate the spaces around your tank.