Medium is coco based grow mix, might contain some %soil . Yes my last attempt to grow, 2 seedlings did turn yellow in week 3-4. Yes i will use a PH meter and Range i follow is close to 5.9-6.1, for EC I’m targeting 1-1.1 for 3 weeks and then let’s see slowly bump it up.calmag yes
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Week 1Feeding. Chemical composition