Sour Stomper & GSC

Hey HappyGrower, you have two different things happening actually ! when the tips are burnt, that's nutrient burn from the strong guano. People under estimate how strong the bat guano is, i've seen many people have this problem. Just because it's bio doesnt mean it's not strong ! Second problem is magnesium deficiency from the flower stretch. During the flower stretch the plant needs more micro so it cannabalises itself. the yellowing between the veins and the side of the leaf is the clear sign of magnesium deficiency. Try adding cal mag to the feed and use it as a spray 2 ml / L ... the problem should stop spreading within 10 to 14 days. Hope this helps ! 🚀