Controlling algae with light? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 07-19-2007, 07:59 PM Thread Starter
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Controlling algae with light?

Has anyone heard of controlling algae by splitting up lighting times? For example: 5 hours on, 3 hours off, 6 hours on, 10 hours off. Somebody said that with this method algae doesnt have enough time to photosynthesis. It could be a load of crap or harmfull to plants, I dont know. Please advise.
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post #2 of 9 (permalink) Old 07-19-2007, 08:03 PM
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george farmer a uk planted tank guy runs his tanks in that way
see link --->http://www.fishforums.net/Algae-in-t...m-t106371.html
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post #3 of 9 (permalink) Old 07-20-2007, 12:51 AM
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it's called siesta period, i use this method and have no problem at all with the plants. lights on from 9 am to 19 pm, with off time between 1 pm to 3 pm. i read that plants don't have a long warm up period to start photosynthesis, some say they can start right away. algae need a long time to warm up, this distrub their growth.


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post #4 of 9 (permalink) Old 07-20-2007, 12:55 AM
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Huh - I thought that the mid-day break in lighting had been debunked.
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post #5 of 9 (permalink) Old 07-20-2007, 02:28 AM
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debunked? why? what did i miss?


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post #6 of 9 (permalink) Old 07-20-2007, 02:32 AM
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why not just put the tank by the window for natural light then?... Sun light is very unpredictable with cloudy days and all.

I'm beginning to think using sunlight is perfect for a low tech tank.


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post #7 of 9 (permalink) Old 07-20-2007, 02:58 AM
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With very little effort in searching or sorting - if you search for split photoperiod, siesta, etc on just about any planted forum you will find many threads to this effect:

http://www.aquariumadvice.com/viewto...ghlight=siesta

http://www.barrreport.com/algae-cont...ghlight=siesta

http://www.barrreport.com/general-pl...ghlight=siesta

http://www.aquaticplantcentral.com/f...ed-advice.html
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post #8 of 9 (permalink) Old 07-20-2007, 03:53 AM
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wow thanks for the info, i just quick replied and didn't think on searching because i'm currently at work. my bad. but the information there is great. in my tank algae is indeed a problem, and the siesta period does helped me to reduce algae. i guest the point is in the increase of CO2 during no light period, not the photosynthesis difference between plants and algae. thanks for pointing it out. i understand how it works now.


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post #9 of 9 (permalink) Old 07-21-2007, 01:09 AM Thread Starter
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I kept a low tech tank with natural sunlight before... It did fine until the "Bionic, Flesh Eating, Algae from Hell" took over. This stuff even grew on living crawfish, they looked like little green algae balls with claws. The sight of it still haunts my dreams.
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