Thank you very much.Wow such a beautiful Reef Tank, lots of inspiration there. What is your light schedule like ?
I recently I added a 7th AI Hydra 52 module and changed the lighting settings, I would like to increase the intensity even further but once again the Aqua Illumination Hydras were not designed considering hotter climates like the one over here and it always run into overheating issues. Worse with the 1st generation of Hydras and definitely not properly addressed with Hydra52's, don't know about the new HD's.
For now these are the settings I am using: