Awesome article on lighting.

[Peyton]

I found this link on another board and thought I would post this on here. Maybe this will help clear up some confusion regarding the old "watts-per-gallon" rule and how it applies (or doesn't) to more modern light choices.

Aquarium Lighting; Reef, Planted Light Information. PAR, Bulb, Watt, Kelvin, Nanometers, MH, LED.

 

[Peyton]

And while I'm at it I want to post this light chart made by Hoppy over on TPT. This chart assumes decent reflectors for t5ho lights. For the full article PAR vs Distance, T5, T12, PC - New Chart