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Old 02-04-2014, 09:28 PM   #1
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Too much light

I was wondering if leaving my led lights on for to long can hurt my coral ?
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Old 02-04-2014, 09:47 PM   #2
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Just like people corals and fish need time to recharge. I would not leave on more than 12 hours.
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Old 02-05-2014, 04:21 PM   #3
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I get away with leaving my lights for 8 hours a day - the last hour being my blue led moonlights only, and my corals are doing very well. I would gradually cut back and be cautious of any algae build-up from excessive light.
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Old 02-06-2014, 07:27 AM   #4
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I leave mine on 24/7 and ots fine
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Old 02-06-2014, 07:52 AM   #5
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Quote:
Originally Posted by rorybeau View Post
I leave mine on 24/7 and ots fine

How long have you had you're tank for ?
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Old 02-06-2014, 07:52 AM   #6
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That is way too much and not only unnecessary but also a waste of electricity. Fish need to be exposed to both daytime light and nighttime just like us humans are.
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Old 02-06-2014, 08:11 AM   #7
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have quite a lot of shade due to a rock ledge its almost complete darkness
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Old 02-06-2014, 05:07 PM   #8
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Agree, you definitely need a period of total darkness. I run 8 hours full lighting with an hour of blues either side then total darkness, all of my corals close over for the night and the fishes sleep.
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Old 02-06-2014, 05:08 PM   #9
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might try see if it aids the growth on my pulsing xenia, thanks
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Old 02-07-2014, 02:45 AM   #10
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While you're at it, check also if it makes a difference to your energy bill as well!
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