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Looks like root rot, probably caused by an oomycete called Phytophthora (genus). Wikipedia says: Root rot can occur in hydroponic applications, if the water is not properly aerated. This is usually accomplished by use of an air pump, air stones, air diffusers and by adjustment of the frequency and length of watering cycles where applicable. That is ...


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Okay, so they're sweet peppers - the first thing I'd say is, there's too many plants in one box - that number of plants should be split between two boxes of that size as a minimum. Second, the leaves on the plants in the second photo don't appear to be twisted or affected, only the ones you show separated from the plants in the first pic. Did these ...



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