Mine was a simple 10g with parts I had around the house. I used a HOB filter and removed the media and put in rockrubble and ran carbon 2 weeks out of the month. Other than that it was a heater, lights, and a MJ400. I kept zoas mainly, but also had acouple leathers and a green brain coral. All of the corals did well especially after I added the powerhead. You have to make sure to keep up with water changes. You don't need to do much of a water change, but I did 1-2 gallons a week.