There is no "best". Because that's only an opinion. There's many thing to think about when choosing lighting. I personally don't like light spillage out of the tank. It causes a huge distraction for me. I also want something inaudible, so that means fans need to be ultra quiet. Then you come to what you're trying to keep. This will determine power and spectrum. If you use MH The draw back is heat to water and house. Then there's led, but I could never dial it in and find that growth pattern and the underside die off as the coral grows out. T5's give an awesome light spread and the corals growth pattern is best imo. But then you lose shimmer. Then you get into combination lighting. This is where $ start come into play. A hybrid led/t5 is upwards of $1500 some as high as $2-3k. MH/t5 bring tons of heat so now you get into chillers and ac cost. Which is best? That's debatable, but certainly cost is not, and that usually is what determines which way most people go.
