Throughout the many years in the hobby and diying my own aquarium lighting controller I gave up and bought a Used Reef Angel from Joe the founder of Angel of America's Fallen (https://aoafallen.org/) back in Colorado. Learning more and more about Arduino programming I tried to simulate a certain location on the GBR. RA had an on going thread on compiling code to mimic sunrise and sunset with clouds using gps coordinates.Pulling past weather data I came up with that solution for my tanks temps. So if anyone can use it to their advantage please do so....