Coral spawning is directly correlated with moon phase. There is extensive literature detailing this.
In terms of the Apex moonlights being too bright/wrong color, for the coral spawning systems run by Dr. Jamie Craggs, they replaced the blue led diodes with Warm Whites and then put a ping pong ball over the light as a diffuser/lux limiter.
In terms of the Apex moonlights being too bright/wrong color, for the coral spawning systems run by Dr. Jamie Craggs, they replaced the blue led diodes with Warm Whites and then put a ping pong ball over the light as a diffuser/lux limiter.