Space Cookies / Substrate Wars

I would say to little feed and possibly to much light. You do have tight node spacing so decreasing light will help them stretch more. Everytime mine start yellowing I increase my feed. They need plenty of Nitrogen and CalMag right now. I only start thinking of TO MUCH if the tips are burned and yours ain't. So you nailed it, I would decrease light or space it further away. Then I would increase feeding. Check runoff ec or ppms and see how much different your ppms are then what your feeding them. This is the only way to truly know how their doing. Short answer tho is yes, little to much light and to little feed. Please consider selecting me as the answer so I can be entered for a chance to win grower of the month contest I would really appreciate your support growmie 😃 🙏

i'd guess drainage property of soil over time. use more perlite or similar next time. I don't see glossy or overly dark leaves. Hard to believe it is Nitrogen-caused. The mottled leaves is probably from suboptimal rootzone. coco - 30% of volume shold be perlite, but with higher water capacity mediums, like tpicaly soil or sphagnum peat moss, should be 50% perlite or similar.