The Planted Tank Forum - View Single Post - Too much for a 20H?
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Old 01-07-2013, 04:56 PM   #3
micheljq
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Hi,

I did have a setup 20H with 2 CFLs bulbs 23 watts - 6500k. I was successfull without CO2, then with diy CO2. Spent a lot of time errors/adjustement to find a right balance.

I am an amateur, according to me 3 CFLs without CO2 would be too much, but then it depends on the distance of the CFLs to the tank, and the lighting duration.

With diy CO2 i was lighting 8 hours a day, the bulbs were 8" over the water, was getting some filamentous algae that's all, and great growth.

Michel.
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