Holy smokes,
What and why are you dosing so much stuff? I get 2 or 3 part, but the rest, huh? WHAT???
1ST off, carbon dosing at 1ppm N03 and .04ppm P04 and hardly a bioload, not a great idea. This looks to be a case of the mad scientist looking at too many variables whole overlooking the basics. Strong lighting, good flow, lots of fish, food, a means to export, and a means to replace minerals used in skeletal building. Maybe a bit of passive carbon, too remove incidental chemicals. All that other stuff is just leading you on a headless, wild goose chase

Try the KISS method