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Backyard Aquaponics Pty Ltd, is a leading edge aquaponics company based in Western Australia. Originally started as a means to provide information to people, who were interested in learning more about the subject, the company has now grown and changed quite a bit since those early days. The company has now become an amalgamation of many different people, who are passionate about aquaponics, about furthering the spreading of information, and about helping people with their own aquaponics systems.
Basic Aquaponics System
In The Beginning
One of the original aquaponics companies in the world, we remember the days when there was only one or two websites about aquaponics, when there were no online discussion forums, when you couldn’t buy a book or DVD on the subject and the word aquaponics raised eyebrows because nobody had any idea what it was. So, we started an online forum, then we wrote the first book on aquaponics, produced the first DVD on the subject, and opened the first retail aquaponics display centre in the world. Then of course we began publishing the Backyard Aquaponics Magazine, the first glossy aquaponics periodical available.
Our Systems
The Backyard Aquaponics systems have become widely known as some of the best quality aquaponic systems available on the market. Ours are the systems other people tend to copy, which is great, we want people to copy our systems, we want others to have well designed, simple, well constructed systems which will give them positive experiences with aquaponics.
You can see some of the systems we’ve installed for clients here by clicking this link. This is only a small sample of the systems we’ve installed over the past 5-6 years, if you’d like to see a more comprehensive list they can be viewed on the forum.
The Forum
The Backyard Aquaponics forum was started in 2006, it’s the original aquaponics forum that started interest in aquaponic online really rolling. Since then there have been dozens of new forums and communities started, some have come and gone, some still remain. The Backyard Aquaponics Forum is free, and always will be, it’s a place to learn and to share. Please come and visit the forum, sign up and become a member, it’s free and you be joining a friendly interesting and varied community of people from around the world with a wealth of experience in different areas of aquaponics.
The Magazine
We began producing the Backyard Aquaponics Magazine in 2007. The magazine is filled with interesting facts about aquaponics as well as systems, fish species, reviews articles on almost every aspect of aquaponics that you can imagine.
Aquaponics is essentially the combination of Aquaculture and Hydroponics. Both aquaculture and hydroponics have some down sides, hydroponics requires expensive nutrients to feed the plants, and also requires periodic flushing of the systems which can lead to waste disposal issues. Re-circulating aquaculture needs to have excess nutrients removed from the system, normally this means that a percentage of the water is removed, generally on a daily basis.
This nutrient rich water then needs to be disposed of and replaced with clean fresh water. While re-circulating aquaculture and hydroponics are both very efficient methods of producing fish and vegetables, when we look at combining the two, these negative aspects are turned into positives. The positive aspects of both aquaculture and hydroponics are retained and the negative aspects no longer exist. Aquaponics can be as simple or as complex as you’d like to make it, the simple system pictured above is made from one IBC (Intermediate Bulk Container). The top was cut off and turned upside down to become a growbed for the plants. Water is pumped up from the fish tank into the growbed. The water trickles down through the media, past the roots of the plants before draining back into the fish tank.
The plants extract the water and nutrients they need to grow, cleaning the water for the fish. There are bacteria that live on the surface of the growbed media. These bacteria convert ammonia wastes from the fish into nitrates that can be used by the plants. The conversion of ammonia into nitrates is often termed “the nitrogen cycle”. This will be dealt with in more detail elsewhere on this website.
Growbeds filled with a media such as gravel or expanded clay pebbles are a common method of growing plants in an aquaponic system, but there are many different methods that can be used. In fact any method of hydroponic growing can be adapted to aquaponics. Plants can be grown in floating foam rafts that sit on the water surface. Vegetables can also be grown using NFT (Nutrient Film Technique), or through various other methods using a “run to waste” style of growing. This is done by removing a percentage of the fish water each day and watering vegetables planted in different media such as coir peat, vermiculite, perlite etc.
Many different species of fish can be grown in an aquaponic system, and your species selection will depend on a number of factors including your local government regulations. Quite high stocking densities of fish can be grown in an aquaponic system, and because of the recirculating nature of the systems very little water is used. Research has shown that an aquaponic system uses about 1/10th of the water used to grow vegetables in the ground. An aquaponic system can be incredibly productive. I’ve produced 50kg of fish, and hundreds of kilograms of vegetables within 6 months in an area about the size of 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.
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