I have huge sunlight from window to the back of the tank and it's fun that the part of coral which received the sun directly has more colour and growing form to the direction to the sun, the more contact with the sun, the more coloured and growing up.
Here my whole tank to easy imagine:
https://www.reef2reef.com/threads/550-liters-systerm-sps-and-lps-separately.1065384/
https://www.reef2reef.com/threads/550-liters-systerm-sps-and-lps-separately.1065384/
