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Old 07-19-2013, 10:58 AM   #1
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Lighting times / timer

Recently I have setup a 29 gallon tropical tank and am curious to know if it is unhealthy for my fish to have my lighting on at two different times of day. Since my wife and I work two different schedules with her on first shift and I am on second, I wanted to possibly have the light on from about 9am - 12pm then from 4pm - 10pm so that we can both enjoy the tank. Right now I get about an hour and a half of a lit tank per workday and want to enjoy them before I go to work. Will this mess up the fishies night schedule or should I just leave the light on for 13 hours a day? I have a timer on my light so I could set it for multiple intervals.
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Old 07-19-2013, 11:32 AM   #2
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Originally Posted by rkerk View Post
Recently I have setup a 29 gallon tropical tank and am curious to know if it is unhealthy for my fish to have my lighting on at two different times of day. Since my wife and I work two different schedules with her on first shift and I am on second, I wanted to possibly have the light on from about 9am - 12pm then from 4pm - 10pm so that we can both enjoy the tank. Right now I get about an hour and a half of a lit tank per workday and want to enjoy them before I go to work. Will this mess up the fishies night schedule or should I just leave the light on for 13 hours a day? I have a timer on my light so I could set it for multiple intervals.
I ran my lights on a 6 hour on / off cycle for months and saw no bad results from it. It should be just fine.
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Old 07-19-2013, 02:47 PM   #3
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Originally Posted by rkerk View Post
Recently I have setup a 29 gallon tropical tank and am curious to know if it is unhealthy for my fish to have my lighting on at two different times of day. Since my wife and I work two different schedules with her on first shift and I am on second, I wanted to possibly have the light on from about 9am - 12pm then from 4pm - 10pm so that we can both enjoy the tank. Right now I get about an hour and a half of a lit tank per workday and want to enjoy them before I go to work. Will this mess up the fishies night schedule or should I just leave the light on for 13 hours a day? I have a timer on my light so I could set it for multiple intervals.
A split cycle like that is fine and preferable over a 13 hour photoperiod which would most likely cause you to start having algae issues.
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