Discolored & curved Leaves Day #14 12/12

Hi out there.
Looking for some thoughts on some leaf discoloration and curling.
We are at day #14 12/12. I am growing under a LED light in organic/supersoil. I was hoping to complete the grow with just water.
I had mag deficiency issues during veg as I was using distilled water.
There was a little mag deficiency starting again, and when I watered on sunday (4 days ago), used a very thin layer of supersoil as a top dress.
One of the blue mystics has been getting a different leaf discoloration and curving of the leaf over the last 2 days.
The other 3 plants, much less so.
The one affected most is the tallest at 21", and 6-7 " from the light. The others are trained, shorter, and 12" from the light.
So, ? progression of mag deficiency vs. nute burn from the supersoil vs.being too close to the light, vs. something else.
here is the whole grow:https://www.rollitup.org/led-other-lighting/752417-first-ever-grow-hans-led-6.html#post10104122

Thanks in advance,
GYF

What you got to understand is once plants hit bud, they need different nutes, like very low (N) but high (K) and (P), and thats just the start, go to your grow shop and see what they got, even then side with caution come nute time, and yes flush you plants every month like you should have done....washing out all that (N) thats just clogging roots up, to my blog

https://www.rollitup.org/blogs/blog32237-flush-baby-flush.html

Hey guys and thanks for chiming in. I checked them again this morning and they/it is no worse. My THC infused opinion is that the leaf changes are/were due to nute burn from the supersoil, There are 4 plants, and this is the only one with these changes. When I watered on Sunday, I put the supersoil top dressing only on the 2 blue mystics and not the 2 aurora indicas. One of the mystics was trained and the other one wasn't The ppm of the distilled water/Epsom salt solution was 440. I think the root structure on the 2 mystics was different enough, in that some of the roots were in the (cool) roots soil, and some of the roots were in the (hot) supersoil. When the drainage of the supersoil hit the roots in the cool soil, nute burn. To me, this explains the randomness as to why only 5 or 6 leaves are affected, and there is no progression today. I welcome you guys to follow along and see how the movie ends. The thought of hitting this with "nutes", to me, would only cause more problems. They have not had any nutes so far, and I think they are ok, and they have the supersoil (TGA supersoil) to pull whatever they need.