what makes CS2: Prime and Push different? CS2: Prime & Push™ provides your plants with targeted nutrition for robust plant development from Seed to Senescence®. With minimal inputs delivered at exactly the right time. Hit the Shift with these Advanced Nutrients 8th-Generation water-soluble powders, engineered for the shift as your nutrient demands change from vegetative to generative. Combined with our proprietary Tetraplex Iron™ for superior iron uptake and a carefully formulated range of high-quality inputs, you have a straightforward, reliable formula for cultivation success. CS2 is specially designed for use with all hydroponic growing media.