Aquaponic low nitrogen level solution. (Add more fish). As your plants mature they need more nitrogen. My test is to add more fish. Test Formula (More fish) = (more poop) = (more ammonia). (More ammonia passing through the biofilter) = (increased nitrogen levels).
Kennie D is the author of this post.
Glad to see the next installment! It’s really cool to be let in on your thought process — you’re teaching us to fish by talking about fish ; ). Any chance you can post a link to your testing kits that you use? Your post inspired me to do some “fishing” on the internet (ok enough puns now) and I found this interesting article on aquaponics as well as this article on calculations needed to understand the right ratios of ammonia to nitrates, etc.