Need to add in the media to the BOM. I presume you have the clay in the 2 pots also.
My next test will be with sand and fill and drain. The ivas system way. And in the AP101 section the class about water quality, I would like to try the water tower to clean out the solids In my fish tank. The pesky fish fill up my filter every 3 days now. It is getting difficult to keep up with them.

I also want to learn more about NPK. Fish waste is supposed to be 5-3-2 Which is a bit low in P&K for a lot of plants. So I need a Biologist to chime in.