A friend of mine, who has lots of experience in reef tanks, gave me his tank yesterday and helped me set it up. I have intermediate experience myself. We used play sand that we cleaned real good and rock that I assume was dead since it was dried out. It still had color though. Anyway, we attached two powerheads and a hang on power filter. He has had success with HOB
filters. We put in bacteria and enzymes to get it started. My question is, with the powerheads, is the filter necessary? It's moving the sand around and making the tank cloudy.