Hey, deficiencies are very rare except when you reuse the soil several times; often it's excesses! So rinse with tap water (fill a 10-liter container, leave it open, and let it sit for 24 to 48 hours so the chlorine evaporates and the water reaches room temperature). Adjust the pH (between 5.5 and 6.5), then wait until the soil is nice and dry and thirsty, and water it generously! In the best case, this will solve your problem, and in the worst case, it won't harm them. I hope I answered your question, my friend.

Well spot is usually a mag issue but it could either to much too much or to less but to be honest to much N can do this also so it could be a range of things , like my moms all ways to me when any that think needs healing drink water lol

Hi mate, look your PH solution (6 to 6.5 is good) and use water bottled. If your PH is good i think you have a magnesium deficiency so try to feed with a magnesium :D Good grow mate

Mag deficiency by the looks of it. If your water isn't filtered, just use some Epsom salt dissolved into your water. That'll fix the Mag issue without causing a building of Calcium which can cause similar problems. Regular calMag will be fine with water 100PPM or less. Happy growin'! ✌️🌱🌲💨😎

Hey there RCC, that's a magnesium deficiency you can tell from the yellowing between the veins affecting the lower leafs first and the burning on the sides of the leafs. Don't worry this is fixable ! Just add organic Cal mag to your feed and also make a foliar spray 3-5 ml/L spray before it gets hot three times a week the problem should stop spreading quickly and the plant will completely recover in 10 days or less . Hope this helps ! 🚀

@rastacringeculture Hi mate firstly I would endeavor to raise the ph to between 6.2 and 6.5 as the spotting could well be a sign of ph fluctuations and/ or nutrient lockout Hope this helps mate 👍