If your not using silica in your grow, you should be. Grows strong plants, makes em tolerate crazy temps better high or low.
And insects hate plants full of silica. Not all silica are the same kinda of silica either so check out the different kinds, and that silica raises ph except the mono silicate kind I think.
That last one is expensive tho but heard it’s work it. that’s my next silica to try. Me personally use silica every watering in soil and every res change in hydro, stuff is a must you will notice the difference, at least I do see the difference.