I don’t run Zeo anything so this isn’t about that, but...I have not seen heavy blue tanks bring out more colors. Or am I way off? I would say white light is what brings out more color. Every yellow coral I have seen in someone’s blue tank ends up being a mostly green coral. Ime white light is the way to get true blue, yellow and orange hues.
you are correct, IME running heavy or blue only turns corals green, and the transition away from it takes some time.
I think many should understand that daylight is very much needed for health and proper coloration, and to think otherwise is unwise.
I only have two yellow acros in my tank, and the Pink Floyd is a true yellow whereas the other one I have (TGC Count of Monte Cristo, like an all yellow SSC) is shedding a lot of its green (yellow under blues) with added daylight spectrum.
I don’t think heavy blues “brings out more colors”, it just showcases them better after the daylight spectrum did all the heavy lifting during the day.