The aeros is a Deep Water Culture (DWC) system that is also known as a bubbler system. These are very popular hydroponic systems that require very little growing media. However it does require a lot of nutrient/water solution. The aeros is available in 1 plant or 2 plant options and also a 4 plant recirculating option. The plant is supported in a net pot filled with a growing media such as Clay Pebbles and the roots are submerged in a highly oxygenated nutrient/water solution. The aeros includes an air pump and submersible airstone(s) to provide a large amount of oxygen to the roots of the plant and this results in rapid growth. The bubbles produced by the airstone keep the nutrient/water solution constantly moving and oxgyen rich and so the roots stay healthy. It is important to monitor the EC and pH levels closely with this system in order to gain optimum results. This is easy-to-do by simply removing the inspection port cover and taking a pH/EC reading. Full instructions are supplied. The aeros Module is the basic kit supplied with a budget golf ball airstone and no pump. This gives you the option of creating a multi-pot system by simply adding a suitable air supply. Select the number of aeros Modules you need and then purchase an air supply to suit. Add PLANT!T Clay Pebbles and off you grow! For a Deep Water Culture System of 5 pots or more – choose the flexibility of the aeros module. However a controller reservoir for recirculation is preferable. You can also upgrade your airstone to the disc type for more oxygen to the roots.