For me a combination of great growth and great colors. Also I would like to find the best bang for my buck.
From your build thread (https://www.reef2reef.com/threads/brandons-diy-reef.672831/) you have metal halide and T5 over your 75 gallon. What is prompting the change?
ReefBreeders Photon V2+ will be hard to beat for this size of tank. Illumagic Blaze (uniquecorals has them) is another consideration. AI Primes, EcoTech Radions, or Orphek will be expensive as you’ll need multiple lights.


