Leaving lights on all the time - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 06-27-2006, 03:05 AM Thread Starter
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Leaving lights on all the time

I have a 5 gal nano tank with no fish in it. I was wondering if I could leave the light of this tank on all the time?
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post #2 of 9 (permalink) Old 06-27-2006, 03:07 AM
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Not a good idea. Plants need "night" time. This is when they do most of their growing.
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post #3 of 9 (permalink) Old 06-27-2006, 03:07 AM
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Algae don't need a nightime....so don't.

In college....so no aquariums for a while.....
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post #4 of 9 (permalink) Old 06-27-2006, 03:37 AM
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If you want all kinds of algae that would be a GREAT idea


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post #5 of 9 (permalink) Old 06-27-2006, 04:01 AM
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When my timer went bottoms up, for the umpteenth time, I accidentally had my lights on all day and all night. I shut them off manually in the morning, then back on in mid afternoon for about three hours and off again until the next day. Since then I have turned them on and off manually. This was about a week ago, and so far nothing unusual has happened. But, I sure wouldn't do this on purpose.

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post #6 of 9 (permalink) Old 06-27-2006, 04:05 AM
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I have had problems with a timer before, and had some really irregular and long hours of light with no ill effects, but this was only for a short time. I definitely recommend you go out and buy a cheap timer at wal-mart and set your light to be on for 8-12 hours. Nothing good will come of 24 hours of light.
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post #7 of 9 (permalink) Old 06-27-2006, 03:21 PM
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Yah, I picked up a digital timer at Wally World the other day for a tad less than $9. You can get a mechanical for about $6 or so if you're not picky (i.e. have to have something that will take a grounded plug.)

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post #8 of 9 (permalink) Old 06-27-2006, 03:42 PM
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24hrs of lighting is definately putting you on a crash course with disaster. If you are trying to encourage plant growth you are wrong..Plants need to rest just like we do and they do so when the lights are out. If you are planning to grow algae rather than plants then go ahead with the 24hr lighting plan.

From what i understand,plants will be "stunned" if they are given irregular and extreme lighting hours. What i do is i will light the tank for about 5 hours,give it a few hours of lights out and then restore the light again for another 6 hours. This is to simulate the passing of a day as "shadows" are cast over the aquatic plants as the sun slowly shifts across the sky in true nature. The period of darkness also disrupts algae growth as indicated by dennerle research.
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post #9 of 9 (permalink) Old 06-27-2006, 04:02 PM
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I have done this for Angel fish fry grow out tanks with no ill effects on the fish or plants. Not a full aquascape though.

Quote:
Originally Posted by Plantnoobie
I have a 5 gal nano tank with no fish in it. I was wondering if I could leave the light of this tank on all the time?

Moved to Tucson.
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