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Perfect Proph.
This is the answer I'm looking for.. Yes I calibrate the pen everytime I make up my feeds. Maybe overkill but I just have to be sure. The slurry test shows that the B&Q verve soil is acidic with its pH of 5.1.... I should have prepared the soil with lime to ph buffer the soil. Next time it'll be coco. Soil is just easy to get a hold of.
This is the answer I'm looking for.. Yes I calibrate the pen everytime I make up my feeds. Maybe overkill but I just have to be sure. The slurry test shows that the B&Q verve soil is acidic with its pH of 5.1.... I should have prepared the soil with lime to ph buffer the soil. Next time it'll be coco. Soil is just easy to get a hold of.