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Place the black marix discs in the pots
Growers who use powerful fans must decrease the noise of airflow through the ducts
The unit has a collapsible design
Made at the highest GAS standards
VEG+BLOOM STAX (Stackswell) Size (Weight):2.2lb Place the black marix discsOverview STAX from Hydroponic Research is a top quality growth powder containing calcium and magnesium. Using a good quality CalMag in your feed schedule is essential for maximising growth potential whilst minimising the chance of running into deficiencies which could ultimately damage your final yield. STACKSX will increase the production of new shoots and stimulate root development. General Information Only food and pharmaceutical grade components