RainForest Modular 66 - Vortex Sprayer General Hydroponics for propagating cuttings or for quick-starting seeds, seedlings, or transplants, no hydroponic system exists that will match the performance of the RainForest. The hydroponic garden systems Vortex Sprayer lifts and oxygenates nutrient solution then gently distributes over cutting base or root system, giving you the most oxygen possible in the root zone. This system is ideal for starting plants or even for growing plants to maturity and harvest. Many growers choose to start their plants in RainForest modules and later transplant them into larger systems like our WaterFarm. Several RainForest modules can be connected to a Texas Controller for larger installations.