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    Mystery issues with new growth

    Thanks m8. I do wish it were that simple, but reducing feed (and cycling water, water, feed- for the coco) never helped and actually made bounce back take longer. Which is when started to consider excess Ca Some waffling for explanation: In DWC started to experience rapid pH drop a week or so...
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    Mystery issues with new growth

    Updating in case anyone experiences same. 90% sure this has been caused by excess calcium, but not 100% yet. polishpollack correct in Sulphur deficiency diagnosis. However this is followed by further micro/trace nutrient def. on new growth, most likely manganese due to locations of necrosis...
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    Mystery issues with new growth

    Oooh, interesting, thanks m8. 100%? I have always assumed veins yellow first with sulfur def. Will use add some epsom salt, Mg boost will be good too.
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    Mystery issues with new growth

    Hoping someone can assist with diagnosing the 'little leaf' issues I keep on running into. First two pics are where it is more advanced - DWC. Other two pics are different plants - coco, about to get a feed after letting medium dry out a bit. Have seen on a few different plants, in different...
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