What's up guys!? Yet another day for me and another problem. So I was looking at my vegetive plants and I noticed on 1, the edges turning lighter green and also very slight brown edges on a few leaves at the top . After research I think I have determined that this is a magnesium nutrient deficiency. This is my very first time growing, I could be very wrong. I checked the pH levels of my run off and it's very low compared to what I'm actually watering with. I normally balance pH level the water to 5.8. I took the run off on all of my plants after watering/flushing and I'm getting extreme lows down to 4.8 to 5.5 pH. What I did do today is I flushed all of them with a relatively high pH level water (9) as this was the only way to get the run off to a decent level pH, which is barely making it to 6 but I stopped there. However the top soil pH is showing 6.2 pH. Can anyone help me with this? I feel like my plans have magnesium deficiency and the reason why I am not considering feeding nutrients is because I know the soil is packed with nutrients plus I use a little Foxfarm fertilizer. Do you guys think this is magnesium deficiency ? (pic included) and also should I pay much attention to the pH balance of the runoff? Should I pay much attention to the pH level of the top soil? And lastly, how much higher should I make the pH of water when trying to raise pH? Overall, please share your opinions with me on what u think the issue is and whether I'm headed in the right direction or not? If you can answer all questions that would be super! P.S Is it possible to have a nutrient deficiency and nutrient burn at the same time?