At the club meeting last night, I did a presentation on measuring PAR in our reef tanks and why it has value, regardless of the type of lighting choices we employ. I do try to focus on daylight spectrum more than 20,000 Kelvin, because PAR meters are designed to measure sunlight and not the blue spectrum. Here's the PAR measurement of the frag tank. The light is a Reefkoi Evolution LED fixture that is three years old. The numbers are: 0" - measurement at the surface of the ...
Recent Comments
