Is this Iron Deficiency?

[Sixpackdad]

The start of the solution to your problem starts with ensuring the pH of your plant’s soil is in the right range. You can do this with a digital pH meter (and ppm meter) and measure the solution going into your plant, and the run-off coming out the bottom.

First grow, need help?

Did the venkatool ph meter come with three calibration packets? If so, calibrate. If not, calibration reference solution is available on Amazon. The ppm meter, in my opinion, doesn’t need calibration. I use tap water. I think you are using distilled, which has a pH of 7 (the pH meter can’t detect this because of the absence of anything in the water) and a ppm of ~0. Add your standard calmag dose, then measure the pH and ppms. This is your baseline solution. From here, I either just pH do…