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Old 10-12-2006, 12:32 AM   #1
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Photocycle times?

I am fairly new to SW and reef tanks and was wondering about lighting cycle times. Currently, I have my MH on from noon until 8pm and my flourescents on from 11am until 9pm. Does this seem okay? I've read a few posts where people are only keeping their MH on for a few hours. TIA.

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Old 10-12-2006, 08:59 AM   #2
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I'm not sure about reefs, but most tend to run a total of 8-10 hours.

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Old 10-12-2006, 09:24 AM   #3
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I dont have any MH`s but I run my VHO`s 9-9


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Old 10-12-2006, 10:14 AM   #4
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The photoperiod you are running is fine. Corals can only consume so much light energy a day. The rest of the time is spent processing it.
What types of corals are you planning on keeping?
Fish do not read books, nor care what we think.
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Old 10-12-2006, 08:10 PM   #5
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I only ran my 10,000K PC 6 hours/day and my green BTA did fine. When I was running the light for longer though, my corals expanded more nicely and grew quicker.
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Old 10-13-2006, 07:13 AM   #6
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I run..

Actinics 8:30 - 10:30am
Halides 10:30am - 6:30pm
Actinic 6:30pm - 8:30pm

NO Actinic Lighting - 4 hours
Halides - 8 hours

12 hours all up

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cycle, oto

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