There are always strong opinions and debates on lighting, it has always been a hot topic for discussion and it has evolved over time and I anticipate it will continue to in this hobby. I know many do attest to getting both growth and color from LEDs (I expected such comments when I posted). Also agree that lighting alone is not the only parameter and issue in tanks for sps growth and color, all water quality parameters play a part. But, I still won't be switching anytime soon, I really like the options of light spectrum choices T5s provide and there is a lot of research that shows how various corals species react to the light spectrum of T5s (when all other parameters are kept constant). So, I can easily determine what spectrum of light I want in my tank based on this. I also know that I get the fastest growth during the fall and spring with natural light is hitting the tank from the window (not really sure what about this natural light allows for faster growth). If eventually I add LEDs I will keep the mix of T5s and LEDs. But, I haven't had any issues with my T5s and sps growth, so I don't anticipate changing something that isn't broken. My tank is 3 yrs old this month, the first corals that went into my tank went in when the tank was 5 months old, therefore the oldest corals I have in my tank have been in there for 2.7 yrs (all sps corals up until this past April when I added a few LPS and one softy).
