inch deep tank with mostly LPS corals: Ecotech Marine Radion XR15 G6 / Kessil A500X Tuna Blue / Kessil A360X Tuna Blue / AquaIllumination Hydra 32 HD Place one XR15 PRO G6 fixture per 22 inches of aquarium width and length for reef aquariums that are heavy on SPS corals.

When the sun sets most corals will continue feeding at night because that’s when the majority of planktonic food becomes readily available in the ocean. Author’s note: Efficient LED grow lights would provide the right PUR portion of the PAR they emit. This eliminates the need for pumping up the light intensity beyond belief as some PAR fanatics in the hobby would want you to do. This is the reason why you could see LED lights that would actually grow corals better than the older metal halides which had immense power. Some people prefer aquascape-clear tanks with plenty of beautiful fish in them. In this case, you’re after a light that brings out the most color of your fish;Simply put, the A360Xs are twice as powerful as the A160WE but pretty much have the same cone of light spread, although penetrating water way deeper. Of course, not all low-budget lighting will deliver, so you have to make sure you’re getting something that has been thoroughly tested by someone else. Once LED lighting emerged as commercially available in the saltwater aquarium industry, quite a few people remained skeptical about it. Since most LED reef lights come with a customizable spectrum, I will need to discuss the settings further. When choosing a LED or any light fixture for your fish tank it’s important to consider all of your tank’s dimensions:

It produces the same high quality of natural shimmering as the other, more expensive Kessil models. The LED fixtures listed below come with enhanced controllability, a natural shimmer, customization, and durability.

This has been the case with many reef aquariums and there are many users reporting that shorter photoperiods combined with after-lights feeding yield the best results. Finally, if the diodes on your LED fixture have lenses that concentrate the beams too much your tank would get less overall color blending. Use it over aquariums with no more than 20 inches of depth and don’t ramp up the blues to 100% intensity unless you keep more SPS corals at the top.