CYCO SwellCYCO Platinum Series Swell CYCO Platinum Series Swell is an additive that is used soley in the flowering stage of growth, speicifically only the last three weeks before harvest. CYCO Swell utilizes suitable amounts of the phosphates available during the last three weeks of a plants floweing or fruiting stage to provde size and quality. Phosphorus is a key element in increasing satlk and stem strength while improving fruit and flower production during