Top tips: to get your flowers growing, make sure you choose the right hydroponic system, especially if you are new to this way of growing plants. Any system you purchase should have a clear nutrient hose and a return hose. It should also have an easy to use nutrient pump, an air pump and an air stone. Your plants should also balance easily on top of your system. This way, nutrients will flow easily around your plant roots, allowing them absorb everything they need,quickly.