ph...before or after feed ????

If you're growing in soil, you usually test your ph after a watering/feeding, in the run-off that comes through the bottom drainage of your pots.

 

After.

Mix up whatever and then adjust pH.

Wet

 

test yur water to understand what it is then ya dont have to test it anymore. test the mixture and adjust it to the ph ya want. then measure the runoff. thats what tells ya what ya really got.