Help needed guys and girls

When watering give enough until you get aprox 20% runoff, this will prevent a lot of issues, and it's good to keep clay pebbles under the pots in the drip trays this will stop the reabsorption of the runoff back into the pots. It's not always a nutrient deficiency, Cannabis is very good at absorbing chemicals from there environment they do not require the amount of nutrients that most people think and what they say on the bottles, each strain is different is it's own way and has different requirements just because something works for one plant doesn't mean it's the same for all.