Hey I recently upgraded my lights to Radion Gen 3's from MH on my 150 gallon mixed reef. I was hoping someone who has had the lights long enough could tell me what is the best schedule (preset or custom) to get great colors out of sps.
After TONS of reading and talking to a local coral farm growing nice SPS and a few other high end tank owners and from the personal experience i've had with it i've come to the conclusion that the Radiant Color program at 80-90 percent Is the best for coral growth and coloration. White LEDS burn corals EXPECIALLY 5 watt LEDS reds are also not used much by corals and can burn them. Radiant color program runs 55% overall intensity on the white LEDS and only 37% of the overall intensity of the reds. its basically two hours of 20k in the morning 8 hours of around 15k and then two more hours of 20k in the evenings. I personally tweaked mine so the Blue period was at a higher intensity in the mornings. I run my lights from 930A to 930P my tank is sps heavy with RBTA and various lps on the bottom all very happy. just start at 40 percent and VERY gradually work your way up keep in mind that these lights are honestly no joke and will burn your stuff up right now. HAPPY REEFING