Macroalgae Nitrate Export

[Greenmaster]

Originally Posted by bioload

Did a couple test with the API test kit and it would appear that the result may vary greatly depending on solution #2, which need to be shaken for 30 seconds before use.

If you have been using it a lot without shaking then your test solution will not be the right chemistry anymore and you may want to get a new test so you will have more accurate results... It will still give you a yes/no but it will say that the concentration of the nitrates is higher then actual.