Hello and thank you for a response,

I was wondering if anyone had some data on nutrients in the water after fish
and feed have been added.  I can get a rough idea of N by ammonia, nitrite
and nitrate measurements, but would this be reliable?  what about free
Nitrogen?  How is Phosphorous and potassium affected by the addition of
fish, I know feed can cause eutrophication, but would you have any data on
the amount of P in a aquaculture system.  Would you also have data on the
amount of Potassium (K), Calcium, etc in the system?

The reason for asking is that I am proposing a "biosystem" myself, and the
botanist that I am working with would like to know the amount of nutrients
in the water for the best plant selection.  If statistical data cannot be
found, could you give a high/low range value?

What have you found to grow the best?  I am thinking of growing sage,
sweetgrass, watercress, and maybe some sedges.

Thank you for your time,

Michael Booy,  B.Sc., Aq. Tech.
Sturgeon Aquaponics
180 Bayshore Road
Tyendinaga Mohawk Territory
Ontario, Canada
K0K 1X0

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