My new 180g has been running for a couple weeks now with live rock that I got in the sale of the tank, (a fellow RC'er sold me his entire system with live rock). I don't see any pods at night when the lights have been off for a while. In my old tanks, I had lots and could see them cruising the rocks at night. Worms too. What can I add to the tank to restore the pod population?? Is there a kit that has the worms, mini-stars, pods and other creatures?? If so, who sells it??