lou'slifelines

I am confident that I am on the right track to solving the issues with the barrelponics.  The tomato leaves have responded every well to the addition of iron.  Also; with the subtraction of the tilapia and a little time, the plants have began to grow more rapidly.  I think that I can add a few small fish to the tank and work on the balance of fish to plants. Attached are pictures of the same tomato leaves that were posted on the last post...