I have a 120 with two Atlantik icons. When is tested par I got 550+ at the tops of some of my scape. About 120-ish in the middle on the sand and about a 300-400 average throughout the tank. I then was running 50% channel two and 25% channel one. I have since lowered the white channels to about half of that and acros look great. The total color at peak is similar to 18-20k Here is my program. Originally I went crazy with the programming. Now I just set my percentages and three time points. On, middle/peak, and off. All the channels slowly ramp up to their set percentages and ramp down together. Super easy.