I'm in the same boat! I bought one in August/September of last year right before they quit selling them due to cost increases from the manufacturer. I've been struggling with the trying to find the optimal settings for looks and growth on my 135 gallon tank. I've also lost some sps and lps from STN and bleaching due to my ignorance of how to correctly set the duration, peak intensity % and ramp up/down times. I'm currently running the white and color channels (1,2 & 3) at 10% and the blue channel at 50% for around 10 hours. Without a light meter I'm just guessing at this point. The difficulty is that if you wait to see bleaching or STN on a frag, it's usually too late to save it by making adjustments. Any help from someone with more knowledge about this particular light and it's settings would be great. I was having good success on a previous 90 gallon tank with T5's but wanted to go to leds this time around.