Interesting returns today. Keep in mind this is only day 4.
pH has dropped very significantly, now represented by the low end of the High pH test and the high end of the normal pH test.
Ammonia has definitely gone down. I'm estimating 12 because the color was between 2 and 4 (and I dilute it to 1/4 tank water, so multiple my chart result *4)
PO3/4 has MAYBE dropped. Unfortunately this test is very difficult to read, but I guess 7 and my hubby did as well. I wouldn't say this is significant since I cannot be totally sure.
Once the pH drops to 7.0 I will be re-dosing baking soda. Based on the significant activity I am seeing, I'll be testing again tomorrow.