Struggled with this one a bit. Not sure if it's bad ph, poor drainage, overfed/underfed, not letting it dry out enough between waterings could be a strong possibilty, also the aray may have been too close and too powerful when I first put it over the Blue dream, turned it down to 100w and moved it 12 inch away. Some of the new growth is really pale green and a bit crinkly, which I assume is down to strong led to begin.
Some of the leaves are clawing under and drooping, have been for a cple of days
So far I've flushed it with 45 ltr water, the last 8 ltr through it was ph'd water, then fed it 2ml PM h/w and 2ml PM pk 4-8 organic boost per ltr in 4 ltr of water (I know boost is for flower but thought maybe it could do with a potassium or phosphorus boost). Had organic mag granules too. I've also put a wire rack under the pot incase it wasn't draining well.
It's affecting new and old leaves from all over the plant, not just top or bottom
Water is hard so never add calcium anymore. I've cut off most the affected leaves so I can see if it's carryin on. Any thoughts appreciated, this is a problem I have in most grows on at least 1 plant.
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