Arcadia product AQIBLU150    R.R.P. £64.99 - OUR PRICE ONLY £42.95

Why should I use a metal halide lamp?
Metal halide is commonly accepted as the best substitute for nature when it comes to aquarium lighting.

NEW '20,000K' metal halide lamp
As light passes through seawater, much of the visual content is filtered out rapidly - with the light at the red end
of the spectrum being the light that penetrates least, and the blue end penetrating the furthest.

As a result the light on reefs in the natural environment changes rapidly as the water depth increases.
At the very surface, down to a depth of only a few feet, the light in the water has a bright
blue-white appearance, as replicated by the 14,000K lamp.

As depth increases, and the light is gradually lost - starting at the red end of the spectrum, the water takes
on a deeper blue appearance. Photosynthetic invertebrates at this depth have evolved to rely purely on this
blue light, and have lost the ability to photosynthesise using red light (as land plants do).

The '20,000K' lamp has been developed to replicate this environment in the slightly deeper water -
providing the light levels that the organisms need, and also creating an attractive 'moonlight' effect in the aquarium.