I've posted about this before, Helping a friend with their grow. Been to three hydro shops and showed pictures, so far everyone is stumped.
First the details, outdoors, Ocean Forest in 10 gallon pots. Grow Big and Big Bloom used for nutes, and we've been using a compost tea regularly. Plants love it, but the yellowing, bronzing and necrotic spots keep spreading. Tap water is on the alkaline side, so they flushed with sledgehammer and didnt feed for 10 days, thinking it may be nute burn, and have been adjusting the ph of the water since...although water from the tap has been used in years past with no ph issues. One hydro guy thought it may be cal mag, so cal mag supplements have been added every two days over the past week. There was a whitefly infestation, neem oil fixed that...no mites or any pest or pest damage visible.
Only other info that may or may not help, they were put outside mid may and started flowering, and then started revegging past few weeks, first single blade leaves, and now back to normal. Here are the pics below, can anyone offer any insight? New leaves are fine, the damage seems to be in the middle leaves
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