Lisa, I grow fodder but I don't use aquaponic water. The sprouts from the barley have enough nutrient without needing to add more. For pictures of our set up look up Homer Barley Sprouters on Facebook. I can't say enough how great it has been for us in Alaska as a horse and livestock feed. I don't even do the fodder in my aquaponic greenhouse since it requires much more stable temperatures than the greenhouse provides.
Lisa, I grow fodder but I don't use aquaponic water. The sprouts from the barley have enough nutrient without needing to add more. For pictures of our set up look up Homer Barley Sprouters on Facebook. I can't say enough how great it has been for us in Alaska as a horse and livestock feed. I don't even do the fodder in my aquaponic greenhouse since it requires much more stable temperatures than the greenhouse provides.