> I see there are some household light manufacturers (not aquarium lighting)
> claiming they have full spectrum bulbs, and they say the
> way they achieve
> that is by absorbing yellow wavelengths.
I bought a couple of 4' bulbs with this claim a couple of monthes ago, can't remember the brand nor the cost, but they do work as my water hyacinth, water lettuce and anacharis us thriving. I don't know if it's the nitrogen load or whatever in the water, but one of the aquariums is also producing a bunchy of that real slippery, long hairy looking green algae. I just pull it out by hand most of the time to keep it to a somewhat controlable amount.
Bruce Scott
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