I would love to go reef, but don't have lights, or RI/DO unit yet. Right now I only have 4 - 30 Watt NO florescents. Also I continue to have my nitrates at about 20 ppm. When I can consistantly have below 5ppm, and get new lights I will change. Next couple of weeks I will get the RI/DO unit. My weekly budget is only $100 so it will be a while.