That soil mix has a quite high nutrient content so you wouldn't need to add our grow nutrient so soon next time round (if you stick with the same soil). I wouldn't recommend halving the dose on katana though you need the correct dosage to stimulate the root development effect that this product has. If your plants are still suffering, a foliar application of sumo boost can work wonders and realy bring the plant back around.
Lovely structure on those plants though! Thanks for choosing SHOGUN!
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