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Re: lighting small tanks, watts per gallon rule?
On Fri, 12 Mar 1999, Bev wrote:
> Hi all,
> I have a 30 litre = 8 gallon tank, dimensions 46x25x30cm.
> Is there a watts per gallon rule for small tanks, To achive the moderate
> lighting ie. 2 watts per gallon on a 55 gallon, in a small tank, what is
> the rule?
There really isn't a steadfast rule here. People use the 2-4 wpg for a
starting place, but not everyone ends up there. If two tubes is not
enough, add a third..
For more data, I refer you to a survey I did last year that showed for
smaller tanks (especially for Amano, whose books provide an entire range
from 1 to hundreds of liters) people tend to go beyond that 2-4wpg rule,
and correspondingly, for larger tanks, not as much is used.
erik at thekrib dot com