Active Aqua Root Spa 5 gal Bucket SystemDescription Deep Water Culture System: The Root Spa is a deep water culture system. This 5 gallon bucket system is simple yet efficient in growing large plants. Pumping raw air into the nutrient solution, without the use of air stones, is not only cost effective but also highly effective at providing the maximum oxygenation for your nutrient solution. Efficient Design: The system includes a water tight seal to prevent leaks, an 8" bucket basket to