Adding more MHs
The various light-using species can only utilize certain wavelengths/frequencies of light; notably in the orange-short red and "higher" blue parts of the spectrum, not the green and yellow that our eyes most appreciate 5000 to 5500K bulbs. What does this mean? If optimizing health/growth of aquatic life is your goal, you want to provide energy of the needed/useful wavelengths. Other spectra may be desirable for appearance sake; others (UV and IR) can be innocuous to hazardous to you, your system and your livestock. Thus the quality of light is vital.
SeaQuest
BA MSC
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