Common methods of growing plants in an aquaponics system include filling growbeds with media like gravel or even expanded clay pebbles Growbeds, however there are several other methods that may be used in order to have a successful system. In fact any method of hydroponic cultivation can be adapted or slightly modified for aquaponics. For instance floating foam rafts can be used in order to grow Plants, while Vegetables can also be grown using Nutrient Film Technique (NFT), or through various other “run to waste” methods of growing. This is accomplished by removing a certain amount of the fish water each day and watering the various other vegetables that are planted in different media such as coir peat, vermiculite, perlite etc.
The species of fish that can be grown in your aquaponic system are many, however local government regulations may affect your selection, so it is important to get any information about restrictions that may apply beforehand. Within aquaponic system, there can be a high stocking of fish while the amount of water used by the system remains low, a result of the recirculating nature of the system. Research and tests have concluded that an aquaponic system can use about 10% of the water used to grow vegetables in the ground. Due to this and the various other benefits, aquaponic system can be incredibly productive, producing approximately 50kg of fish, and hundreds of kilograms of vegetables within 6 months in a system that takes up about the same area as your average carport, 8m x 4m.
This is a system that requires no bending, no weeding, no fertilizers, and only uses about the same power it takes to run a couple of light globes.