Replying to two posts at once.

NetMax wrote:
"SG" wrote in message
heh reef keepers run 8 and up. I suspect the that freshwater plants
guys run similar. 2w/gal is low, but it is also enough to keep a good
number of plants.

I've never heard of any freshwater tank with more than 4 W/gallon. 2 W/gallon
is most definitely not low light. 1 W/gallon is. My 110 g tank has 1 W/gallon
and I grow a large variety of plants, including some so-called high-light
plants.

I think you are in r.a.f.p. more than I am these days, but the number I
hear repeated a lot, is to keep below 3 w/g unless you are using CO2

That sounds about the right number.

in 1.2w/g have grown effortlessly. I believe you could go higher than
3w/g in a non-CO2 tank, but the equilibrium becomes more hairy to manage,
so I wouldn't recommend it without CO2 injection, JMNSHO.

Absolutely! Without added CO2, the extra light would be wasted.

--
Victor M. Martinez

http://www.che.utexas.edu/~martiv