How much gives 'x' mls of Flourish Nitrogen / Flourish Phosphorus

Gilles

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I am comparing some prices of dutch available products, in terms of quantity vs price and how long you can do with one product.
But since each product has a different consistency, i would like to have some proper comparising.

Therefore i need to 'know' how much:
12,5ml of Flourish Nitrogen / week is in terms of ppm in a 400 liter tank
12,5ml of Flourish Phosphorus / week is in terms of ppm in a 400 liter tank

Anybody can do the math for me?
 
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Gilles

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Thanx for that, should have known that..

FYI :: 12,5ml adds 2,3643ppm NO3 and 0.1477 PO4 respectivly. Which is wierd (low) IMHO.. not?