there are lots of guides and books out there so you need to get reading, even a botany book.
learn how these plants work man, then all this stuff will explain itself.
Ever put salt on a snail; it dries them....
Plants work based on osmotic pressure generated by cells. The salts in the water it absorbs through the roots make interesting chemical reactions that perform and interact with every life function of a plant. When a plant wilts it closed its stoma where it exchanges air co2 oxygen. Key ingredients to make sugar the life source of the plant. A wilting plant is not taking in water or nutes like a healty plant. it's lacking water and in life support mode. When it's healthy it's mass is 98% water; which constantly evaporates the hotter the dryer; the faster. This causes the roots to suck up water and salts the nutrients it needs. However this is all based on stoichiometry. The plants will absorb nutrients based on their availability in whatever substrate you're using. It's chemical bonds; covalent ionic and metallic bonds. The PH affects what can make a bond. So when your PH is off, then some type of nute can't absorb into the plant causing a deficiency and sometimes too much of another nute because they need to be in a ratio of one another or they may precipitate or cause some other kind of chemical reaction such as raising the PH. In fact, if the plant is absorbing water, then there are chemical reactions changing the ph and chemicals in the water, adding, subtracting in PH and PPM.
When you get into dwc, aero, you change the way the plant absorbs water. you make it easier. You make it so efficient that the plant absorbs more salts and can kill itself easily with salts. Too much salts kill cells because it drys them up! Patterns indicate what salt is doing the damage! The plant twisting is a cell in the walls perhaps too much molybdenum. It's really easy to oversalt or burn a plant a young one.
You have a weapon and in reality you only need half the nutes everyone else is using. Just water is fine for burned plants because you need to wash all that salt out. It has nutes, in the leaves. You're killing the cells. When they turn yellow, bottom first, then they start lacking one of the most common nutes, nitrogen. And it's being pulled from the bottom leaves to feed new growth. In fact it's ideal in the last stages of harvest. Because you taste the salts on the leaves you're smoking, if they're drained and washed out with using pure water, you don't smoke them!
So use far less nutes. You need something close to a 3-1-2 ratio for veg, and more K and P for flower, plenty of guides for that too; but remember use half; it's all you need.