I have had the LUX meter convo with all of my local reefers and I get this certain look, followed by disbelief that such a device could be so useful. In Mr. Riddle's MACNA talk 2016, he goes over how our vorals do not need as much light as we might think they do. With that being said, I find a LUX meter very easy to use to measure your light when ramping them up like you do when acclimating corals. A LUX meter is also useful for when you upgrade tanks and transition your lighting over. It's fun to talk about and I like the simplicity of use. Thanks salty and Matt for shining the light on this sunject.