You should be equally concerned about the proportion and concentration of your nutrients. What balance are you using? If your EC is great and you have the wrong brix of nutrients what difference does it make? Your plants are grown enough to flower. Personally I don't worry about EC. I use a liquid style pH tester in an aeroponics system and am awaiting a harvest of an intensely frosty blue mystic plant using no CO2 and my own designed tub and system.
Miles Monroe Reviewed by Miles Monroe on . 1st grow in 8 years sick plants Hi This is my 1st grow in 8 years and i am having trouble with my babies. Im hoping its a PH problem as my meter has been messing me about although it calibrated fine. I have orderd a new ph meter as i cant trust the reading on my old one . Ec is also rising but im sure that is due to evaporation. I am using a NFT system and Canna Aqua Nutes, I was going to use the Canna Hydro Nutes but reading on there site they recommended the aqua for recirculating systems. Grow room temps are around Rating: 5