How Many Watts
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How Many Watts

This is a discussion on How Many Watts within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Should I have 4 wpgs for a 40 gallon 20 inches deep, or 78. I know that there are many variables to this, but ...

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Old 08-31-2011, 09:41 PM   #1
 
How Many Watts

Should I have 4 wpgs for a 40 gallon 20 inches deep, or 78. I know that there are many variables to this, but I will grow swords, hair grass, and such . I now 4 wigs will allow me a lot but is more money, 78 should be good right?
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Old 09-01-2011, 12:32 PM   #2
 
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Quote:
Originally Posted by Christople View Post
Should I have 4 wpgs for a 40 gallon 20 inches deep, or 78. I know that there are many variables to this, but I will grow swords, hair grass, and such . I now 4 wigs will allow me a lot but is more money, 78 should be good right?
I'm confused, what does "78" refer to?
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Old 09-01-2011, 12:35 PM   #3
 
sorry 78 watts... which puts me at 2.05 wpgs
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Old 09-01-2011, 12:46 PM   #4
 
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The type of lighting also affects this, T5, T8 [I assume we are thinking fluorescent tube light of some sort], then the spectrum. Then nutrients--CO2 or not?
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Old 09-01-2011, 01:27 PM   #5
 
yes they will be Co2 and i will dose flourish... also it is a fertilized substrate
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Old 09-01-2011, 01:45 PM   #6
 
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Then to answer your initial question with this info in mind, two T5 tubes at the length for the tank should work. That is a lot of light. May have to control duration, depending upon nutrients. Flourish Comp might get a bit expensive, and it is not really intended for high-tech setups, the balance is out. Might be best looking into the other Flourish products (individual nutrients and trace elements) or dry ferts.
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Old 09-01-2011, 09:09 PM   #7
 
will look into it... thanks
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