I had two over my custom 90g and really liked them, but hated the software, WiFi issues. I kept a simple program based on a 12hr cycle. The key is to keep one color setting for the peak period, then ramp up and down from/to zero. I eventually upgraded to the 360x for the improved color spectrum options and the ability to place each light exactly where I wanted. For the peak hours, I really liked 25% to 35% color range for the 700, with a very small % of red and green (5% to 10% each). I would find a color setting you like, then just adjust the intensity based on your coral's needs.