Lightrails - next big thing in reef lighting?

[littlesilvermax]

Originally Posted by fkshiu

I agree that one MH on a rail over a 6' tank probably isn't enough. I had originally planned on 2 pendants along with supplemental T5 lighting for my setup. In end the low ceiling in my basement did in the light rail plan, but I'm still a fan of the theory behind keeping corals out of direct intense light 100% of the time.

Yes, you need a min of 2 feet above a tank IMO to do a light rail and still have room to work. 3 feet is best.