The average salmon farm discards enough fish waste, which is raw sewage, into the environment to correspond to the sewage levels of a town of 65,000 people.
In nature there is no waste, and aquaponics is a great way to use that waste, now re-purposed as a valuable commodity.
It's a system of connected tanks whereby the people feed the fish, the fish waste feeds the plants and the plant roots clean up the water for the fish. The people then eat the plants - and the fish!
In a large system, fish like tilapia and a wide variety of organic vegetables including lettuce, kale, chard, herbs, tomatoes, and hot peppers are grown in beautiful symbiosis. Together, they produce healthy organic food indoors, without soil, and without generating waste.
People are now experimenting with small indoor versions of the system. If you ever wanted to try to do this in your living room, this is a great video to take notes from.
In larger scale systems, the idea is of course to breed fish to eat. In this home system, only goldfish are used, obviously not for eating. But it's a wonderful way for anyone interested in growing food with no soil or no waste, and maybe to preparing for investing in a larger system in the future.
Wouldn't it be great if this type of small scale aquaponic system were used in schools to teach kids how to grow food this way, and the principle of that in nature, there is no waste?
--Bibi Farber
This video is produced by a dedicated home aquaponics enthusiast named Brian Frantz. Gamercubed is the name of his video channel on Youtube where you can see part 2.
His website and blog: http://piqued.brianfrantz.com