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Grow Questions

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robo
robo
How much nutrient is correct? Should there be a relationship between nutrient EC in vs run off EC out?I continue to suffer nutrient problem, leaves go yellow. I now have no idea how much nutrient I should feed it. Previously run off EC was at 1.8, I gave plain water several days run off is now at 1.1 and plan to increase slowly. pH is 5.8. How to tell the right level is reached?
Week 7
Leaves. Color - Yellow
5 years ago
2
Solved
robo
robo
How do stop or slow down coco coir pH from rising?I'm struggling to keep the pH of my coco coir/pumice mix from rising. I always use ph down to get nutrient going in at 5.5, and the run off water is always 6.5+, and leaves start yellowing/dying when pH reaches 6.8. It doesn't swing, always up.
Week 4
Feeding. Chemical composition
5 years ago
2
3
Solved
robo
robo
Dry yellow/brown tips, starting from the oldest leavesWhat's wrong with the plant this week? Many leaves have dry yellow/brown tips, starting from the oldest leaves. Is it some kind of nutrient deficiency, and how do I fix it? I tested the pH of the drainage water and it was 6.8, I've flushed it down to 6.2 now.
Week 4
Leaves. Color - Yellow
5 years ago
4
4