I've been thinking about the details of reef lighting and how it tries to replicate the real world, and I was left wondering why UV wavelengths (350nm) aren't present in reef lighting? I understand that at certain levels UV is destructive, hence the use of UV in filtration at high wattage levels to destroy diseases etc. But wouldn't a small amount of it be a net benefit as part of the light source across the tank too? Has anyone done tests on this?