Tip of the Day – 7/31/2010

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Though a lower Kelvin metal halide bulb will put out more PAR than a higher Kelvin bulb, it doesn’t mean you will see increased growth of your corals. Coral growth depends on a ton of different factors, and changing only one of those will not lead to massive growth of your corals. If light is your limiting factor, then of course you will see tremendous growth. However, if you are using high intensity lighting and getting high PAR numbers already, then switching to a higher Kelvin bulb will only result in more dull looking corals.

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