How much light - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 08-31-2012, 04:21 PM Thread Starter
Algae Grower
 
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Red face How much light

I have a 29gal. tank. I switched from the led light that came with the tank to an Aquaticlife floresent light. Wow, what a difference. In just 3 weeks the plants look great. I leave the lights on for about 13 hours aday. I'm starting to get some algea on the tank glass. I'm I leaving the lights on too long? Thanks
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post #2 of 5 (permalink) Old 08-31-2012, 04:29 PM
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13 hours is a bit long. Are you injecting CO2? Dosing Ferts? How many bulbs?
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post #3 of 5 (permalink) Old 09-01-2012, 12:56 AM Thread Starter
Algae Grower
 
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Originally Posted by Gooberfish View Post
13 hours is a bit long. Are you injecting CO2? Dosing Ferts? How many bulbs?
I'm not injecting co2 or anythin else. Just use plant food.
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post #4 of 5 (permalink) Old 09-01-2012, 12:58 AM Thread Starter
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Originally Posted by photofish View Post
I'm not injecting co2 or anythin else. Just use plant food.
2 bulbs
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post #5 of 5 (permalink) Old 09-01-2012, 01:49 PM
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Is this a T5HO fixture? If so, I suspect that is way too much light for a tank without co2. And 13 hours of light is too much. The plant aren't using it for that full duration, but the algae is.


Greater Washington Aquatic Plant Association www.gwapa.org
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