To ensure that your plants are being fed the proper nutrients and nutrient concentrations, it is important to monitor your nutrient solution.
On a daily basis you should test the nutrient solution and record the results
- EC (Nutrient concentrations)
- PH (acidity / alkalinity)
- Temperature of nutrient solution
- Daytime room temperature
- Nighttime room temperature
It is also important to record when you replace your nutrient solution so you can easily determine when it should again be replaced.
In addition to these tests, you may also want to record the stage of plant growth, the size of your plants and any problems or significant changes.
Recording this information gives you an accurate accounting of what is happening with your plants. This data is an excellent tool for diagnosing problems, should they arise.