I have a mixed reef tank, and lost all my fish, one by one, during the month of May. My best guess is Marine Velvet was the culprit, especially given the suddenness of each fatality. So on Memorial Day I began my fallow period. My intention is to wait until after Labor Day before introducing any new fish. I'm willing to wait longer if need be.
Do I need to consider additional precautions when I restart? Might a UV Sterilizer be worth considering? I'm going to be extremely cautious when adding new fish. I'm sure I know how this disease snuck in, and I won't repeat that mistake again!