Including a wide variety of LEDs in the 380 - 500 nm range will ensure you get the best “pop” out of all your corals. I stumbled upon this great example while playing around with these flashlights after dark in the frag tank. Some popular LED bars used for supplement (and even some main fixtures!) only contain one or two different wavelengths of blue LEDs, but with this setup you’re likely missing out on some corals which fluoresce at different wavelengths. When I’m looking for an LED bar to supplement “pop” I look for something that includes as many different wavelength diodes as possible.

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