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John KempfMemberJanuary 3, 2023 at 6:37 am1001005200
You might consider using rice hills as replacement for perlite in the mix as a partial source.
I would suggest supplying potassium silicate or a silicon product as a foliar in the greenhouse, since they are in a mostly organic media.
The additional silicon will produce much harder leaf exteriors and reduce water loss and transplant shock.