Your example fails here and in the other forum because you seem to think the
watts per gallon rule applies to incadescent light bulbs. I presume you are
not talking about a four watt flourescent. A flourescent light is several
times more intense than an incadescent. That is why a 13 watt screw in PC
takes the place of a 75 watt incadescent. 2 to 3 watts of flourescent light
per gallon of water over a ten gallon tank is more than enough to grow just
about anything. A ten gallon tank is very shallow. Explain to me why a ten
gallon tank would need more intensive light than a 20 gallon tall tank.
Please.
Robert Hudson
www.aquabotanic.com
90 day guarantee on plants!!
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