Plant !t Clay Pebbles 45 Liters Aeration of growing media - ideal to mix into coco coir or soil to aid aeration Drainage - will hold water as well as offering great aeration properties and free draining Decoration - looks great as a top dressing for pots and also helps to prevent evaporation Hydroponics/hydroculture - used widely in hydroponic growing, they are ideal for flood and drain, deep water culture and drip feed systems Aquaponics - are also ideal to be used in aquaponic systems