SN aquarium test

[dark_angel]

I might end up testing my SN , does anyone know how accurate the aquarium test is/ which one I should buy ?

 

[0siris]

You should buy one that can measure up to at least 20ppm.

Also you need distilled water and a scale that can measure 0.01g.

It's not accurate to the percent, but you can see if your SN is mostly nitrite or not.

 

[dark_angel]

What is 20ppm?

 

[Boochky]

20 parts per million