Ideal nitrate parameter for freshwater tank.

Aquarist

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Good morning,

Krysty above is correct and under 20 Nitrates is recommended, however, under 40 isn't so bad speaking from experience.

The only time that you may have 0 Nitrates is if the tank is very heavily planted. Otherwise, there should be Nitrates showing.

Ken
 

EricV

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Due to all the plants in my tank I actually have to dose nitrates for my plants. Generally speaking I'll dose up to about 20ppm and it will get cleared after 3-4 days.

Unless you are keeping a particularly sensitive species though you should be fine anywhere under 40ish though.
 
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