20g long high light - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 04-25-2013, 11:00 PM Thread Starter
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20g long high light

A t5ho 49 watt over a 20 gallon long would be considered high light, right? at this point would you need C02?
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post #2 of 5 (permalink) Old 04-26-2013, 01:34 AM
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What bulb or combination of bulbs produce 49 watts? What brand is the light?

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post #3 of 5 (permalink) Old 04-26-2013, 01:49 AM Thread Starter
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It's an Odyssea 24 inch T5HO. I just said 49 watts because it uses 2 24 watt bulbs. there's one 24w t5 10,000, and one 24w t5 Actinic lap.
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post #4 of 5 (permalink) Old 04-26-2013, 02:06 AM
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change actinic bulb if you wanna grow plants
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post #5 of 5 (permalink) Old 04-26-2013, 02:10 AM Thread Starter
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What are you talking about? I have this fixture over my current tank and it grows plants just fine.
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