40 gallon aquarium with about 30 gallons of water in it.
Heavily planted, CO2, lighting, etc.
I've been EI dosing based on the chart at the bottom of the GLA website here: https://greenleafaquariums.com/glane...zation-method/
I've been dosing exactly what it says: 1/4 tsp KNO3, 1/16 tsp each KH2PO4, K2SO4, and Plantex. The usual macro on odd days, micros on even days, 50% WC on day 7.
So anyway, my plants seem to be doing fine. I wish some would grow more, wish others would grow less. But then it donned on me, I have no idea what parameters to test, when to test them, or what the levels should even be to know if I should adjust any of my ferts.
I'm guessing, if I test it just before a water change, the TDS will be crazy high, probably pretty high nitrates as well.
So what should I be testing for EI dosing? And when? How do I know if I should adjust from 1/16 tsp Plantex to 1/16 + a pinch?