Sorry I dont have time to go into more detail, but heres a quick thought.
Find some high quality fine-ground dolomitic lime and attempt to evenly but mildly apply it into the soil matrix.
Stop the ferting until you get the pH under control.
If you can, use pH 7.5 RO water at a slow steady pace to help keep the roots from burn until you can fix the prob.
The best route to go if you truely want to save these plants is a major transplanting involving new soils ( with lime! ) and careful feeding.
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* Anything I say is a result of complex chemical and electrical reactions occuring in my brain and should not be taken as any sort of tangible existential proof. |