They're about 9" off of the water. I always run a 12hr cycle with a peak period of 6 to 8hrs (currently closer to 8hrs now). Color starts at 0% then ramps to 30% for the peak hours, then back to 0%. Intensity ramps to 85% (with a 2hr mid day bump of 90%), then back down. During peak hours I run violet at 100%. I was adding about 5% red and green for a few days, but went back to my normal settings. Maybe one day I'll try to incorporate them again?How do you run your kessils? How high off the water? What color percentage and light intensity?
I'm running six of them over my 90g.