What can i do to improve the health of my Gorilla ...

Hello. Youuuu plants are looking good. It’s normal the leafs of the plants are colored when you are far enough in to Flowering. Good luck 👍🏽🍀

Mate the gorilla breath is not a heavy feeder until weeks 3 to 7 in flower. I dailled back my feeding on this girl but i increased PK in wk 3 to 7. PH 6.5 shes happy and make sure your watering to see atleast a 5% run off. Nutrient deficiancys are rare with todays range of nutrients, most problems occur die to poor ph management and poor watering practises. If your ph is off the leaf tip is the 1st place it will show. Most say nut burn i say this is not so in this case.

With a marijuana potassium deficiency, you’ll generally see symptoms on older leaves, but not always. Sometimes you’ll see the symptoms at the top of the plant. Leaves with a potassium deficiency get yellow, brown, or burnt edges and tips. The burnt edges may look a little like nutrient burn, except the affected leaves also start turning yellow in the margins. To solve flush medium replace with fresh nutes and pH at 6.5. Also you are over watering. I can tell when the plant leaves droop. Make sure to lift grow pot when it feels light it is time to water again. If it still has some weight don't water. Easiest way to properly water in soil.