guys thanks for the help, the tank is up and running (only water at the moment), will be buying some live rock today and adding as the budget allows for it, planing to let the tank run for three to four months befor adding any fish. Just need to no the skimmer must the lid sit above the surface or below the surface. I have to powerheads in the tank so the flow is pretty good, mat165 could you please post a pic of how you upgraded your lighting if you dont mind...