Metal halide lamps are more popular choices for aquarium lighting compared to incandescent lamps. Metal halide lamps can produce really intense and strong light that is five times as bright as the light produced by incandescent ones. Metal halide lamps can also reach deeper than other kinds of lamps. But in spite of their power and intensity, metal halide lamps come in compact sizes so they're perfect for the smaller aquariums
Metal halide lamps also last for long time. They have a life that spans anywhere between 15,000 to 20,000 hours, which is ten times as long as incandescent lamps that last between 1,500 to 2,000 hours only.
If you're already convinced to get metal halide lighting for your aquarium, it's best to go for the 15-Watt 15000K Metal Halide Bulb - XM from Pet Store
. This double-ended lamp gives off a bright white light with just the right tinge of blue. The blue tint complements fish's and corals' natural pigmentation more than any other hue.
The 15-Watt 15000K Metal Halide Bulb - XM works well with either an electronic ballast or metal halide ballast, which makes it very versatile. It can also be used with actinic lamps if you want a stronger blue tint.