NPK Fert dosing on tap water - The Planted Tank Forum
  • 1 Post By Dtomazini
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post #1 of 1 (permalink) Old 05-29-2019, 12:33 AM Thread Starter
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Question NPK Fert dosing on tap water

Hi Guys,

These days i became in doubt about how to keep macro nutrients in balance, considering the tap water parameters.

Usualy i get this readings with tap water:

PH - 7.0
KH - 3 dGH
GH - 3 dKH
FE - 0 mg/l
PO4 - 1 mg/l
NO2 - 0 mg/l
NO3 - 0 mg/l

So in my thoughts to keep the ratio around 5:1:5 (N:P:K), if the PO4 is around 1 mg/l, I will need to raise the N and K. Please, is this right ?

I'm using the Seachem Aquavitro line, and now I believet this wasn't a good choice, due to Activate got a mixed from phosphorus and potash. I will need to get each compound separated, to avoid a overdosing from phosphorus.

The tank is going well, a few green filament algae spots, but nothing critical.

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