Could use a little help here....
I plan to supplement chelated iron in my aquaponics as recommended by a commercial farm in my area. It is supposed to help the lettuce plants. My plan is Sequestar 13.2% chelate of iron. Has anyone else used this? I am concerned about the nitrogen addition to my system. Don't want a big fish kill.
If I test the iron, my thinking is that I want to keep to 2-3 mg/l as is recommended by my commercial aquaponics friend. His system is outstanding.
Thanks for your help.