Q. I am not sure about the color variations of metal halide lamp. Which one should I choose?

A. NAMH is a metal halide lamp with high color rendering properties. It produces natural colors close to fluorescent NA Lamp. On the other hand, NAG helps the green aquatic plants look more vivid. There is no difference in growth rate of aquatic plants between them. NAG is recommended for those who wish to have more vivid green color in a planted aquarium while NAMH is recommended for those who wish to emphasize red aquatic plants and red color of tropical fish, though the choice will ultimately depend on your preference.
10,000K and Blue Light (equivalent to 20,000K) lamps are for marine aquarium.

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