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Re: light on aquariums
The question of the day is: how does the watt per
gallon rule work?
It's simple....decide which type of bulb you like and
shoot for 2-4 watts per gallon. If your tank is
deeper, then shoot for more light. Also, surface area
is a consideration. A 40 gallon breeder will require
better coverage than a 40 gallon standard. Metal
halide or NO flourescent it doesn't matter. No one
uses incans anymore. MH are just a better way of
getting more light onto a smaller area...this was
The most important thing is coverage. Get light into
all of the nooks and crannies.
This topic has been beaten to death. The watt/gallon
rule is kinda silly. I know it's not going anywhere,
but it's not valid. Watt/surface area is a better
rule. That's why *lower* light per gallon works on
p.s.....Incans grow the best plants with no CO2
injection. I've seen it myself. Especially swords.
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