If you’re going to feed the fish, shouldn't they feed you in return? 
It’s time to ditch your goldfish tank and dive into barrel-ponics! With 
as little space as a baby’s crib would occupy, you could be farming 
nutritious fish and vegetables together in a mostly closed system 
affectionately dubbed barrel-ponics.
The basic principle is this- fish waste nourishes plants allowing 
them to grow higher and more densely without the use of soil, fertilizer
 or pesticides. The plants in turn, cleanse the water of toxins thereby 
maintaining a healthy environment for fish to thrive. The system 
requires only basic, low cost materials to build and with a little 
practice becomes self-sustaining, requiring very little maintenance.
The man responsible for this ingenious invention is Travis W. Hughey.
 He seems to have stumbled into the world of aquaponics- the integration
 of aquaculture, or fish keeping, and hydroponic, or soilless, plant 
growth techniques- when he bought an unneeded greenhouse from a high 
school in his area. With aquaponics, water consumption is lower and 
plant density is usually at least twice that of soil based methods. As 
Hughey immersed himself in the world of aquaponics, he, like many 
others, began to see the potential this type of system has to bring food
 to developing countries where soil quality and precipitation may be 
inadequate for traditional farming techniques.
The problem with bringing aquaponics to developing countries lies in 
its reliance on a robust electrical infrastructure to power the pumps, 
float switches, and timers used in the complex systems you see operating
 here in the states. Inspired by other experts in the field and 
determined to find a way, Hughey set out to build a small system that 
operates entirely without the use of electricity. And with that, 
barrel-ponics was born. Using large plastic barrels and common plumbing 
supplies, Hughey built a system designed to teach others the principles 
of aquaponics on a small, simple scale. Hughey’s ultimate goal is to use
 barrel-ponics to bring the technology of aquaponics to developing 
countries, places like Africa where they have an abundance of maize and 
cassava but very little in the area of greens and protein. By educating 
the people on the basic principles of aquaponics he hopes, in time, to 
see the technology adapted in such a way that it can be implemented on a
 much larger scale and used to fill crucial nutritional gaps throughout 
the world.
For ambitious preppers this design is ideal! We may not be out to 
feed an entire village but anything that adds to our ability to provide a
 sustainable food source in times of plenty as well as in times of want 
is worth learning about.
Hughey has published a manual for building his barrel-ponics system 
and has made it available to all as a free download. You can find it 
here. We also came across 
this tutorial
 for building a similar system at 
instructables.com. No mention was made
 of Travis Hughey but we suspect the information presented here can be 
traced back to Mr. Hughey’s innovative work.
 
Both sets of instructions are for a system of a scale sufficient to 
compliment the family kitchen with tomatoes, herbs, leafy greens, and 
the occasional fish. It is not meant to fully sustain a family, or even 
one person for that matter but it’s a unique twist on the family garden 
that’s sure to bring you one step closer to self-reliance!