I was kind of wondfering the same thing. I like to think I am not dosing a whole lot, but who knows. I will still proceed with water changes on sundays, and if I see anything going downhill I wil change up my routine. Trial and error.
55 Gallon Planted
3 GBR, 2 Bolivian Rams, 1 Juvenile Super Red BN Plecos, 9 Oto Catfish, 9 Bloodfin Tetras
Rotala Indica, Cardamine, Crypt Spiralis, Pygmy Chain Swords, Dwarf Sag, Lutea Crypt, Wendtti Bronze and Red, and Floating Frogbit