First of all I am new to this forum, and fairly new to the SW hobby, only been doing SW for about a year. I have a 75 gallon reef, and have built a 10 gallon refugium. What kind of flow rate should I have through it? And, should I have the light over it on 24/7 or same as my main display lights or on opposite of the main lights? I have looked for some info and haven't had much luck in finding it.