Easy to use tablets that I directly put in my chapin sprayer with 5.5L water capacity. Let it overnight and when the lights went on I shaked it and ph’ed it and watered my plants.
Plagron has a Nice line of products. Easy to use with the plan you can get from their site and set it to your pot count/size, type of soil/nutrients line and liters that you water. Easy to use and mix.