There are a multitude of ways to run a healthy marine system from lights, skimmers or skimmerless, fuge or no fuge, using macro algae or not, sump or no sump, bare bottom or DSB, etc. What works for one person may not for another. It also depends on what is in your tank. If it's a fowlr, well, they (the fish) generally don't care about the light (unless light specific) too much but it's what we like to see. Soft corals are much more forgiving of less than stellar water conditions than are most sps.
I think one thing that often gets neglected for discussion is how the corals are doing (assuming it's a reef). Keeping them alive and having them thrive and flourish are two very different things. When the lamps on my t5s were getting old, some of my corals started reaching for the light because of less intensity. Their colors weakened and they weren't opening as well as when the lights were newer and stronger. And I started having algae outbreaks.
I agree that lighting often gets neglected and that's a serious issue for reef tanks unless they are NPS only. Stable, good water parameters, excellent filtration, appropriate water flow, correct temperature, and the correct lighting are essential for a healthy system (in addition to many other things) as you all well know. It's not even an argument. Humans cannot replicate, exactly, all that is in an ocean nor can we provide true sunlight (well, I guess we could come pretty close if our tank sat outside in a region where corals thrive, with no top on the tank). But, we do try.
I think one thing that often gets neglected for discussion is how the corals are doing (assuming it's a reef). Keeping them alive and having them thrive and flourish are two very different things. When the lamps on my t5s were getting old, some of my corals started reaching for the light because of less intensity. Their colors weakened and they weren't opening as well as when the lights were newer and stronger. And I started having algae outbreaks.
I agree that lighting often gets neglected and that's a serious issue for reef tanks unless they are NPS only. Stable, good water parameters, excellent filtration, appropriate water flow, correct temperature, and the correct lighting are essential for a healthy system (in addition to many other things) as you all well know. It's not even an argument. Humans cannot replicate, exactly, all that is in an ocean nor can we provide true sunlight (well, I guess we could come pretty close if our tank sat outside in a region where corals thrive, with no top on the tank). But, we do try.