So I'm running a DSB in my current tank; Reefer 170. Right now there is no life in the DSB as far as I can tell; maybe some microfaona (tank is cycled) but honestly have no idea. It varies between 4 and 5 inches and in one corner is 3 inches. My question is how much live rock should I purchase to get the life to help it succeed, like bristle worms and spaghetti worms, etc? Or are their packages I can buy that supply these to add to the tank? Currently there is about 30lbs of Pukani dry rock in the tank.