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- #221
Cool, I've been adding PK and using Bio Gro to bump up the KI had the same thing happen. I ended up flushing... I shouldn't have. Ask @FelipeBlu he remade my mix. We have worked out that the canna A and B has a problem with potassium deficiency. So if you get the Canna mono potassium and add literally 0.5ml per litre it should be fine. The tips won't get green again but also won't get any worse. Feel free to check my journal for the same pics hehe. I'd say I was dealing with it around 5 week ago ISH.