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  2. Aquarium lighting - Wikipedia

    en.wikipedia.org/wiki/Aquarium_lighting

    Another light source in reef aquariums is metal halide lighting. These high output lights closely recreate the shimmering effect of bright tropical sun over a patch of coral reef. Metal halide bulbs come in a variety of spectra from 5000k on up to 20,000k and allow for a variety of light-hungry corals to survive under them.

  3. Reef aquarium - Wikipedia

    en.wikipedia.org/wiki/Reef_aquarium

    A reef aquarium or reef tank is a marine aquarium that prominently displays live corals and other marine invertebrates as well as fish that play a role in maintaining the tropical coral reef environment. A reef aquarium requires appropriately intense lighting, turbulent water movement, and more stable water chemistry than fish-only marine ...

  4. Actinism - Wikipedia

    en.wikipedia.org/wiki/Actinism

    Actinic lights are also common in the reef aquarium industry. They are used to promote coral and invertebrate growth. [3] [4] They are also used to accentuate the fluorescence of fluorescent fish. Actinic lighting is also used to limit algae growth in the aquarium. [5]

  5. 32 types of saltwater fish for your aquarium - AOL

    www.aol.com/32-types-saltwater-fish-aquarium...

    Bear in mind that a saltwater aquarium is more expensive and difficult to set up and maintain than freshwater even if you chose one of the best fish tanks. Some of the fish, too, can fetch eye ...

  6. Here are the best 'As Seen on TV' items under $25 at Walmart

    www.aol.com/lifestyle/best-seen-tv-items-under...

    These As-Seen-on-TV products are available through Walmart and totally worth the hype. (Photos: Walmart) ... Each device also has a built-in LED light to illuminate exactly where hair is hiding as ...

  7. Live rock - Wikipedia

    en.wikipedia.org/wiki/Live_rock

    Live rock becomes the main biological nitrification base or biological filter of a saltwater aquarium. Harmful elements dissolved in the water of the aquarium, including ammonia, phosphates, and nitrates, are processed with the help of the organisms that are introduced from the live rock into the aquarium's ecosystem.