Not only that, if it was only photosynthesis, like 2 layers of leaves that completely cover the canopy would be enough, but transpiration is very much dependent on leaf surface area. More transpiration = better nutrient uptake. It is entirely possibly to cause nutrient defficiency symptoms if your plant has not got enough nutrient uptake to keep up with your light levels.
Not only that, if it was only photosynthesis, like 2 layers of leaves that completely cover the canopy would be enough, but transpiration is very much dependent on leaf surface area. More transpiration = better nutrient uptake. It is entirely possibly to cause nutrient defficiency symptoms if your plant has not got enough nutrient uptake to keep up with your light levels.
That’s a great point, need to read up on that a little more.
Since removing the humidifier, the plants drinking a hell of a lot more and that makes total sense.