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Special for Hard Water sources - Growth/Veg stage, For cultivation on inert media, drain to waste, perlite, rockwool systems. Direct full absorbtion of nitrogen compounds and high grade trace elements, no residue. This item is for two bottles, one each of
CANNA Substra is the nutrient for water based systems where drainage water is not returned to a nutrient tank but instead drains away (DTW drain to waste /Run-to-Waste / Open hydroponic systems): These are themost popu
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