I understand that plants need nitrogen and that aquarium plants get their nitrogen primarily from nitrates and ammonium.
When testing for nitrates in a planted tank what amount should be in the water for the plants to get nitrogen to meet their needs?
If I wanted to make my own nitrogen fertilizer should I just use potassium nitrate or a mix of potassium nitrate and urea? If a mix what proportions of each should I use?
Finally where can I find some good information of how much dry fertilizer to mix into a solution with known rates of nitrate addition such as 1 ml will raise the nitrate levels in a 10 gallon volume by 10 ppm.
If you hadn't guessed this is my first attempt at using something besides the Seachem Flourish line.