White spots

That's from something u split on it Very easy 2 tell. The drop spots are A typical or something split. And as with droplets of liquid. If the light is too high. The water acts like a type of magnifier tat burns the pigment imo More pressing would be your mag def. If you're using soil Epsom Salt is the best source of mag/sulphur for a plant. You can also use as a foilar spray. Which you she will benefit from.. 150ppm added to your tap.. If u do use ESalt make sure its pure, (no aloe Vera or anything like tat) Topically ppl just get a calmag Loads of really good1s on the market Ones with amnio acids and so on.

Have you checked the pH? It looks like fertilizer burn