Re: [APD] Re: fresh water / nitrates / plant growth

["Richard J. Sexton" <richard at aquaria_net>]

At 09:20 AM 1/5/2005 -0600, you wrote:
>It's my understanding that there are 'super micronutrients' that 
>are used in such small amounts that it's impractical to include 
>them in trace element mixes. Stuff like Beryliium, which is also 
>used to power spaceships when in large spherical form. In a 
>closed system like an aquarium they get used up, so water changes 
>replenish them. Not sure if that dynamic applies to ponds.

Just how much beryliium do you think there is in rainwater ? :-)



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