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Self Sufficiency

Sustainable Food Production Using Aquaponic Gardening

aquaponic gardening system


Aquaponics combines the hydroponic cultivation of plants with farming fish, creating a recirculating symbiotic system for sustainable food production. The fish provide nutrients for the plants in the form of waste and the plants filter the waste from the water to keep it clean and healthy for the fish to live in. It’s the ultimate setup for self sufficiency, providing you with power to grow all the food you need to survive.

How it Works

In aquaculture, waste accumulates in the water from the farmed fish living in it. This waste must be removed or it will become increasingly toxic to the fish.  Beneficial bacteria in the tank converts the fish wastes into nutrients that plants can use. This water is then sent into a hydroponic system where the nutrients  are feed to the plants, filtering the water and eliminating the waste. After the water has been filtered it is then recirculated back to the water tank holding the fish to restart the process all over again.

In Aquaponic systems the most popular fish used is Tilapia because of their large size and mild flavored taste. They are a good source of protein and among the easiest fish to farm. Tilapia are very tolerant of fluctuating water conditions, such as changes in pH, temperature and oxygen. They can tolerate high stocking density and have a rapid growth rate allowing two harvests per year making them ideal as a food source.

 

The best plants to cultivate in an aquaponics system are leafy greens and herbs like lettuce, spinach, chives, and basil. The high nitrogen fertilizer generated through fish waste allows plants to grow quickly and hardy. Fruiting plants can also thrive in auqaponic systems with more care like tomatoes, cucumbers, peppers and melons. The only plants that don’t do as well are root crops like potatoes and carrots that normally grow under the soil.

aquaponic diagram

Aquaponics is a great way to grow food for you and your family year round. In fact you can become almost completely self sufficient for food with some careful planning and and a little maintenance. When living in a remote area off the grid, having the ability to produce everything you need to survive yourself is invaluable.

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6 Comments

  1. tavia11 says:
    04/08/2012 at 6:55 PM

    Can someone tell me the least amount of space I would need for a small productive aquaponic setup?

    Reply
    • Adriana says:
      07/08/2012 at 4:14 AM

      It should be relatively mild winters where they are located but they are attempting to use bio-gas to heat the greenhouse where they keep the aquaponic system. Given the scale of their bio-gas system and the mild winters they should be able to do it, or at least come very close to it. 8 months of below zero won’t cut it with tilapia unless you have a small nuclear plant heating your system. You would probably need a pretty high tech high energy system to maintain it.

      Reply
      • Lorraine says:
        08/26/2012 at 3:20 PM

        Hey that is an awesome idea. I would love to see you video document this idea to share! I live in Alaska and am putting together a plan to work year round in a greenhouse that doesnt suck alot of money heating and lighting. Good Luck and hope you share the process and results!

        Reply
  2. jarbs says:
    04/07/2013 at 3:53 PM

    This is a very smart and effective way of fish propagation. Gonna have to make this kind of system in the future, planning to have a little business.

    Reply
  3. peter says:
    06/30/2015 at 9:51 PM

    What a Great Idea! Love it!
    Could you please detail a bit more info when you say you need ‘more care’ for fruiting plants? i assume they need to be fed a more balanced diet? As opposed to just nitrogen rich? but how todo that with out hurting the fish? Is it just a matter of adding P and K?..
    help?
    Thanks for this really cool idea!! Im off an running to home depot !!

    Reply
  4. Jay says:
    12/27/2015 at 1:24 PM

    Great PR!Thanks for sharing,you have done an excellent job here.Thanks again:)

    Reply

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