Tagging along for the answer ,, I am sitting up a Chalice only tank ,, still waiting on the tank to arrive ,, my Par levels were going to be in the 115 range ,, mostly blue spectrum ,, but with some white LED light in the mix ,,
Not just blue. you need to have full spectrum for the zoos to convert to energy, usually 15k to 20k is ideas. Of course u need light spectrum device to measure that, there are tons of light schedules, setting on forum, just look for the type of light tou use especially for LED.
I run only blues on my tank, and if I run whites, it’s only for a couple of hours at the most, then heavy blues for the rest of the day. If you go check out Jason Fox’s videos with reef builders, he only uses blue lighting, no whites or anything else. He also gives reason to using only blue lighting, in short, your corals do not need white light to survive and multiply. He said when he’s diving in the water in nature, the deeper you go, the more the water filters out the white leaving only blue so essentially corals are being grown in the wild in only blue spectrum lighting.