MH / LED usage in 2016

Discussion in 'Equipment' started by rygh, Jan 12, 2016.


What is the PRIMARY source of light for your tank. So ignore secondary enhancements.

  1. Metal Halide

    3 vote(s)
  2. LED

    40 vote(s)
  3. T5

    3 vote(s)
  4. Other???

    0 vote(s)
  1. rygh

    rygh BOD

    Jun 29, 2010
    Likes Received:
    Do corals need UV to to survive? : No. Plenty of tanks with coral and no UV.

    Is it a gimmick, or does it help? : Not sure.
    Based on absorption spectra, it does appear corals can utilize the UV end of the spectra.

    My opinion:
    It adds to PAR, much like adding more royal-blue would.
    But it is less visible, so you can increase PAR without making your tank so blue. A bonus.
    Also, the wider and more varied the spectrum, it seems the better corals can adapt to light levels. (Maybe)
    So overall, probably a good thing.
    But worth spending a ton of money, probably not.

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