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Active ingredient: 5% w/v pyrethrins (naturally derived from Chrysanthemum flowers)
Match the variant to your available floor space and how many larger plants you actually want to run
Maintenance dose: 1ml/L
keeping reservoir EC around 1
Best for: Growers running multiple high-wattage lights who need reliable power control without melting their timer to bits
Cultiwool - X-Fibre Slabs Size:1.33m Slab Active ingredient: 5% w/v pyrethrinsCultiwool X Fibre Slabs Stonewool Growing Slabs for Big Root Systems Best for: growers running larger plants with extensive root systems who need a finishing stage stonewool slab with excellent water and EC control. Our thoughts This is a proper stonewool substrate, not a gimmick version of one. The horizontal fibre structure genuinely does what Cultiwool says it does, keep water and EC even across the slab, so you get more consistent growth from
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