Aqua Illumination Blade Low Profile Tank Rest Mount Terrariums They are also preferable when

They are also preferable when planting in gravel substrate (as opposed to sand)

Capacity (Inhabitable): 540L /143 gal

buffer capacity

never fade and with exceptional color rendition and diffusion without the loss of PAR

Bacteria can also be a food source for corals

Aqua Illumination Blade Low Profile Tank Rest Mount Terrariums They are also preferable whenIncluded with all Blade fixtures 39" or smaller, the flush tank mounts rest right on the side walls of your aquarium. This low profile solution is great for fish only and freshwater aquariums where illumination is the primary goal. The wide angle output of the Blade achieves sufficient illumination even when mounted close to the water's surface and the IP66 rated water resistance means you won't have to worry about moisture damage to the light fixture.