Bringing this thread back to life because I just did some testing for chelated iron. Found zero in my system. Here's the test kit I used:


I've got maxicrop with iron. Could get bloodmeal, maybe chelated iron via internet. With planting right around the corner (strawberries are in already!), I need to do something because I had symptoms of deficiencies last fall. What ever I do, I will add this test to my weekly testing just to see what happens.

I will probably add 1 cup of Maxicrop to my 175 gallons of water and test in a couple of days. That's short term. Has anyone come to a conclusion on long term?