[karimwassef]

Agreed. I don't add carbon or skim. I stopped skimming when I realized that the golden gel solid export from my skimmer was very similar to the coral food mix I was feeding in. I started adding my solid skimmer export to my corals and they opened up and grew just as well. So- I only have 3" sand, open cavity concrete rocks, and my algae scrubber /fuge/ settling filter. The sand is home to the worms. The rocks are home to worms, pods and sponges, and the algae keep all inorganics to zero, as well as being a safe haven for pods and worms - and their planktonic babies.