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Re: Actinic lights, photoreduction

> From: "James Purchase" <jpurch at interlog_com>
> Subject: Actinic lights in freshwater plant tanks and algae problems
> Diana Walstad's book "Ecology of the Planted Aquarium" certainly is full of
> information that I've never heard before....
> But she explains that a common process called "photoreduction of iron" is
> able to set the bound iron free:
> DOC-Fe+++  +  light -> Fe++  +  oxidized DOC
> Apparently, this reaction, which also takes place with manganese and copper,

	Forming what?  

> can be greatly accellerated by light.

	If it's photoreduction, it would be completely dependent on it.

> Now this is "slightly new", at least to me... but the kicker is yet to
> come...
> Diana cites research

	I'd very much like to see the reference to this stuff.

Paul Sears        Ottawa, Canada