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Me except the eye color
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so my tank is 48" long, should i get a CF that is 48" long as well? I will have the fixture roughly 2" above my tank. My theory is that once the fixture is 2" above the tank the light spectrum will spread out even more than 48" leaving me with used light. So i was thinking maybe getting a 36 fixture is more suitable. What do you guys think?
 

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Depends on do you plan to grow plants.
If yes, then you need several CF-bulbs. A total wattage of about 2-3 per gallon.
And of course then you also need a CO2 pressurized fertilization.
After that you need help from DiPpY.

Harry
 
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