Become a Backyard Farmer with Portable Farms®

Become a Backyard Farmer
with Portable Farms® Aquaponics System

Phyllis Davis, Co-Inventor, Harvesting fresh greens from their Portable Farms.

Phyllis Davis, Co-Inventor. Phyllis is President of PFAS LLC.  To see Phyllis Davis and get to know her and see her knowledge and passion for aquaponics, view her 8-minute YouTube Video of her award winning presentation (Second Prize) at an inventors contest in Southern California.


To find out what is IN the Portable Farms® Kit and what is NOT in the Portable Farms® Kit , please request the FREE AND INSTANTANEOUS PRICE LIST (second box on top panel on every page of this website).

Please EMAIL US with a request to buy a Portable Farms Aquaponics System and we’ll send you an invoice for payment.

You may pay with PayPal, Major Credit Cards and Wire Transfers. If you’d prefer, you may call us to give us your credit number over the phone: 800-906-0256 OR 800-952-6224. We also accept checks, wire transfers and money orders.

Shipping and postage are included to addresses in the US only, BUT for all order outside the US there is a US$140 shipping and handling charge. 

Build, own and operate your own backyard aquaponics system.
One module of Portable Farms Aquaponics Systems feeds a family of eight year round.
Install twenty to thirty modules and sell the food you grow in a commercial aquaponics operation.

PFAS LLC offers a self-paced online course that teaches users how to assemble and operate a Portable Farms® Aquaponics System.  Most students dedicate an hour per day for a week or ten days to complete the course. Upon satisfactory completion of the course, graduates receive a Portable Farms® Kit used in the assembly of the aquaponics module that is capable of feeding eight people table vegetables and fish . . . forever.  

To view photos of food that is commonly grow in Portable Farms® Aquaponics Systems: CLICK HERE.

Aquaponics is easier and more productive than organic gardening or traditional agriculture and uses 95% less water. Portable Farms® Aquaponics Systems also use less electricity and less labor than any other aquaponics system in the world.

“What will my installation cost me?”

The larger the aquaponics system you build, the better the investment it is because you’re growing more food and saving on food costs at your local market. It’s a true but sad fact that a very small backyard aquaponics system is not the best ‘financial investment,’ but you WILL have a year round supply of the freshest, best tasting and most nutritious food you can buy. Please note: IT’S THE GREENHOUSE THAT IS EXPENSIVE and NOT the aquaponics technology or building materials.
This 10′ x 16′ greenhouse is large enough to hold one 5′ x 12′ grow table capable of feeding two people table vegetables FOREVER. 
  • According to the Craftsman National Building Cost Estimator program, the pricing on a greenhouse measuring 12′ x 12′ would be around $3587, or $25 per square foot. By adding in all the other components for building a Portable Farms® Aquaponics System (training – with includes your Portable Farms Kit and other materials) the cost is about $35 per square foot.

 farm 8 18 2012

 CLICK HERE to read article and view more images of this farm.

newfarm plantedThis new Portable Farms® Aquaponics System (above) is fully solar powered. This new Portable Farms® Aquaponics System has one grow tray that is 6’x16’ (96 sq ft of grow space) which feeds four people FOREVER. 

  • We have incorporated all that we have learned into this sleek new state-of-the-art aquaponics system which is an upgraded version of all the systems we have ever designed or built and it is an efficient and beautiful system that is easy-top-operate and FULLY run on one single solar panel (off back left side of photo on outside of lanai).

tilapia Oreochromis mossambicus

Enjoy Tilapia as a Low Calorie, Low Fat, High Protein Alternative to a Skinless Chicken Breast

* 4 oz Tilapia fillet – 105 calories, 1 gram fat, 23 grams protein

* 4 oz skinless chicken breast – 140 calories, 2 grams fat, 33 grams protein

You can learn everything you need to know about building your own aquaponics system and growing healthy food by taking our FUN and easy-to-follow NEW ONLINE correspondence course.

  • Learn how to grow healthy fish and vegetables so you can become increasingly self-sustaining.
  • Our 45 years of experience in aquaponics is now available to teach you how to feed your family FOREVER. [Read our History: CLICK HERE] It only takes a few days to learn the areas related to assembling an aquaponics system  so you can build your own Portable Farms® Aquaponics System!
  • Aquaponics is easier and more productive than organic gardening or traditional agriculture and uses 95% less water. Portable Farms® Aquaponics Systems also use less electricity and less labor than any other aquaponics system in the world.
Phyllis Davis, Co-Inventor, Harvesting fresh greens from their Portable Farms.

 Phyllis Davis, Co-Inventor, Portable Farms® Aquaponics Systems holding a freshly harvested bouquet of fresh greens.

Feed pesticide-free table vegetables to your family . . . FROM FARM TO FORK.

Feed home-grown fish to your family . . . FROM TANK TO TABLE.


EMAIL OR CALL US with your questions AFTER you have searched our website for your answers. There are over 250 pages on this website and a SEARCH BOX in the top right hand corner of every page on our website. So please spend some time exploring and reading our website prior to contacting us. We receive thousands of phone calls and emails per month and we do our best to address all the answers to common questions on our website. Thank you.

Portable Farms® Aquaponics Systems GROW FOOD.

Phyllis Davis, Co-Inventors Holding 8 large heads of kale (leaves 46" long) in a Portable Farms® Aquaponics System.

Phyllis Davis, Co-Inventor, Holding 8 large heads of kale (leaves 46″ long) in a Portable Farms® Aquaponics System.

Portable Farms® Aquaponics Systems  Are the Most 
Productive and Reliable Aquaponics Systems in the World

  • Portable Farms® grow food in greenhouses, warehouses or underground structures.

  • Without the use of any pesticides, harsh chemicals, antibiotics or hormones. 

  • Portable Farms® use 95% less water than traditional agricultural methods.

  • Portable Farms® use less electrical power than any other aquaponics system in the world and can be solar or wind powered.

  • Portable Farms® provide table vegetables (greens and blooming plants such as tomatoes, peppers, etc.) and fish (tilapia) as a protein source to maintain optimal health.

  • Three people can operate one-quarter of an acre of Portable Farms® which feeds 240 people forever. Twelve people can operate one acre of Portable Farms® which feeds 1,000 people forever.

  • Portable Farms® can be operated by semi-skilled labor and people of almost any age (young and old).

  • Greens grown in Portable Farms® can be harvested in as few as 28 days after installation and continue producing forever .

  • Portable Farms® feed families, communities, cities, countries and the world.


To view photos of fresh food that is commonly grow in Portable Farms® Aquaponics Systems: CLICK HERE.


Our 45 years of experience in aquaponics is now available to teach you how to feed your family FOREVER. [Read our History: CLICK HERE]


Phyllis Davis, Co-Inventor, holding a single head of Bok Choy in this Portable Farms® Aquaponics System that was grown in only 45 DAYS!

Phyllis Davis, Co-Inventor, holding a single head of Bok Choy in this Portable Farms® Aquaponics System that was grown in only 45 DAYS!

We have updated our business stuff January 2017, please read our
2017 Terms of Service, 2017 Disclaimer, 2017 Privacy Policy and 2017 Conditions of Use! Thanks!


farm 8 18 20125 Simple Steps for Becoming a Backyard Portable Farmer


1. How many people do you want to feed? With the Portable Farms® technology you can build a system that will feed as many as 8 people in a space of only 400 sq ft! If you want more Portable Farms® Kits for larger installations, you can purchase those separately. It generally takes 25 square feet of grow tray space to feed one person.








2. Consider your climatic requirements. You’ll need a small greenhouse in an area that gets six hours of sunlight every day. Take into consideration the climatic considerations for your geographic location. Does your area get very hot? Or cold? If so, You may need extra insulation in climatically adapted greenhouse or you may want to add Grow Lights to maintain maximum production year round.





portable-farms-aquaponics-course13. Take our aquaponics Course and be ready to receive the Portable Farms® Aquaponics Systems Kit that comes with the Course. We accept PayPal, Visa and Master Card. If you’re interested in a backyard or a commercial aquaponics system, you’ll need to take our Course FIRST, and upon satisfactory completion of the course, you’ll receive one Portable Farms Kit as part of thee course©, so you can build your own Portable Farms® Aquaponics System. This price for the Course© includes the entire assembly, operations and maintenance course.





portable-farms-backyard-aquaponics14. Determine the best location for your Portable Farms® Aquaponics System in your backyard and install a greenhouse to protect your plants and fish from the weather and bugs in your area. Your location will require good sunlight exposure (6 hours per day, minimum), electrical service and available water.






Butter leave lettuce ready to harvest that is 12" in width. Tender, delicious and rich in flavor.

Butter leave lettuce ready to harvest that is 12″ in width. Tender, delicious and rich in flavor.


5. Install your Portable Farms® yourself, or hire someone who can do it for you. Then plant your seeds, put some fish in your fish tank and in 40 days you’ll have lettuces and greens. Easy.





Phyllis Davis, Co-Inventor, holding a bouquet of ‘greens’ grown in this Portable Farms® Aquaponics System in only 43 DAYS!


OLYMPUS DIGITAL CAMERAThe Happy Portable Farmer, Colle Davis (aka The Fish Whisperer), Inventor, with a single head of lettuce from one of his own Portable Farms® Aquaponics Systems that was grown in only 40 days. This is an unretouched photo.


Yearly Production From Portable Farms® Aquaponics Systems

A 100′ x 100′ ( 30m x 30m) unit produces 80,000 vegetables
and 23,000 pounds (10,400 kg) of fish

A 24′ x 46′ (7.3m x 14m) unit produces 8,600 vegetables
and 1,156 pounds (524 kg) of fish

A 10′ x 20 ( 3m x 6m) unit produces 1,100
vegetables and 400 pounds (180 kg) of fish


Beautiful Fresh Basil grown in Portable Farms® . 

Lane McClelland, Backyard Aquafarms, holding a single head of Swiss Chard grown in a Portable Farmsâ„¢ Aquaponics System

Lane McClelland holding a single head of Swiss Chard grown in a Portable Farms Aquaponics System

Cucumbers grow very well in Portable Farms!



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  1. Murray Hallam

    Nice post. I learn something new. Thank you for sharing such a useful information.

    1. portfarms

      What a delight to hear from you, and with a compliment no less. Thank you. We have been sending people to you for years and trust some of them have given you money.
      Wonderful updates on your site also. Love the new PVC piping setups. We are slated to follow suit in the Spring (here). Moving into a huge new house with barely 6 hours of sunlight where the greenhouse is going. The new technology will be covered in our newsletter and on the site.
      The best to you kind sir.

  2. Michael Lee

    I watched & listened very carefully to your video presentation a number of times and I’m quite surprised that you only run your system twice a day. Does this mean you only fill your grow tray once & drain it once in the morning & then do another cycle may be in the evening? 12 hours apart? If not, then how many hours apart? Do you drain your grow tray completely or do you leave an inch or two of water in it till the next cycle? If you drain it completely, I do wonder how the plants in the grow tray can survive without another cycle of water for the next 12 hours or so & especially if the temperature is in the 80s F.

    Since you only run your system twice a day according to your video presentation, I am very curious to know , am I correct to say that your tilapia fish in the fish tank will depend almost solely on the air pump to provide them with oxygen to survive since there will not be any more oxygenated water at all flowing back to the fish tank again till the next cycle? Thank you very much.


    1. portfarms


      The Portable Farms Aquaponics Systems are designed specifically to minimize energy input. The water circulates twice a day on a seasonal and plant dependent schedule. All the water is drained out each time. The gravel remain wet ever after a couple of days so the plants are no stressed. The air pump insures the fish water is always oxygenated and if the power goes out the system can be operated by hand. The cycling of the water also oxygenates the water.


  3. jordon

    I am looking to purchase a few shipping containers, would this system do well if they were built inside a shipping container that was never going to have natural light inside of it?

    1. portfarms


      As long as you can keep the temperature between 45 and 104 F (5 and 40C), the humidity controlled, nearly free electrical power and accepting the limits to growth because of the size, then sure you can use the shipping containers. We have NEVER recommended or encouraged the use of shipping containers. You are on your own and we strongly suggest if you go ahead that you use a different aquaponics system that ours.

      Good luck.


  4. Patrick Hair

    Any advice for someone starting up aquaphonics in Phoenix, AZ. Shade is the big deal, huh?


    1. portfarms


      The key phrase is ‘climatically adapted structure’ and yes you will absolutely need shade cloth even on the sides.

      Good luck.


  5. Angela

    Hi Colle:

    I am totally impressed. I have been doing raised beds lately but want to return to aquaponics. What is the best media for the grow beds? Also, in order to grow vegetables to their full potential, is the goal to ensure that nitrate levels remain at “0”? What is the acceptable deviation +/1?

    1. portfarms


      Thank you. We recommend and have had the best success with regular crushed gravel. We never have measured nitrate levels. The plants will tell you what they need. The fish and bacteria always produce more nitrate than the plants can use.

      Best of luck to you.


  6. Pedro Prado

    I live in Tampa, Florida. Do I still need to build a Greenhouse for my Portable Farm or can I install it in my backyard without one since I don’t have a lot of temperature fluctuations?

    1. portfarms


      As you can see on the website, we lived in Florida for a couple of years and stated many times: You need an enclosed space even in the Tropics because the rain must be kept off of the Grow Tables and the insects will literally eat your entire production if you do not keep them screened out. Even using a lanai is iffy and you will need a transparent cover over the Grow Table to keep the rain out. If you want to do aquaponic without protection from the elements and insects, please use some other system.


  7. Duane

    I am in research mode for the aquaponics growing systems. I am planning to build a fairly large 24×48 greenhouse for my system(s). I live in western/central North Carolina where the climate ranges from the teens (and occasionally dips to single digits) in winter to upper 90’s and sometimes 100 in summer. Do you have any suggestions for heating the space in winter? Since the fish tanks would no doubt have to be heated, would residual heat from the water help? I would think it would give somewhat of a sauna effect? Any comments or suggestions is appreciated. Thank you!

    1. portfarms


      There are Portable Farms® Aquaponics Systems installation that are heated by passive solar, small electric heaters, wood burning stoves, natural gas and geothermal sources. Pick the one that works best for you situation. The key is to keep the temperature at the surface of the Grow Tables between 45 and 104 degrees F without wild swings over short periods of time. The Aquaponics University Portable Farms Aquaponics Systems Course© covers the temperature requirement in great depth. Insulating all non solar gain surfaces also helps tremendously to curtail heat loss.

      We trust this helps advance your project.


  8. Robert & Pamela Taylor

    We would like tot know the success you have growing some of our favorite vegetables…tomatoes, carrots, onions, potatoes, green beans, and sweet corn.

    Thank you in advance!

    1. portfarms

      Robert and Pamela,

      We have had amazing success with tomatoes and green beans as you can see by the photos on the website. In a variety of places on the website it is noted that

        root vegetables are not grown

      in the Portable Farms because the medium is not conducive to their growth. We also highly recommend against sweet corn because it is a field crop and takes up way too much space for the small yield.

      We trust this information helps.

      Colle Davis – Inventor

  9. ali Rasheed

    I would like to try this on a small very dry Island. Lots of sunlight ,about 9-10 a day. temperature ranges from 75 to 90 degrees quite windy at times. How would I go about getting fresh water fish there as there are none on the island.

    1. portfarms


      The fish would arrive the same way everything else does, including the materials to build the Portable Farms® Aquaponics Systems, by ship or air freight. If there are people living on the island, then in today’s world they have access to everything everyone else can buy. The cost may be higher because of the shipping, but they can buy nearly everything. The Tilapia breeder who is our supplier, ships all over the world and you can make arrangements with him to ship the fish to you.

      Good luck in all of your endeavors.

      Colle Davis – Inventor

  10. Drew Browning

    I was wondering could you create a basement grow room with lighting?(you mentioned sun and greenhouses) and would it still produce enough to off set additional costs of energy use? I was wandering if different plants effect growth of fish? Shrimp only ok for the system or do fish make big difference?

    1. portfarms

      There have been many successful Portable Farms® Aquaponics Systems installed in basements and even a few in garages and a couple in ‘extra’ rooms in homes. (They are about as noisy as a large aquarium.) All of these installations required grow lights and, yes, indoor farms are usually more expensive to operate because all of the light needs to be provided, BUT in nearly all cases the ‘heat’ was adequate so very little additional heating was required. A set of grow lights to provide 12 to 14 hours of light over a Grow Table of 100 sq ft (feeds 4 people) [a 5 x 20 or a 6 x 16ft] will take approximately $90 per month’ depending on your local electric rates. You are the only one who can decide if that cost is worth being able to eat the finest, locally grown, pesticide free food on the planet.

      Interesting question on the affect of plants on the fish. We never saw any impact because the fish are so amazingly healthy no matter what we grew.

      Shrimp or prawns or crayfish all work well. Some are cannibalistic so research the type before you put them in the tank. These creatures are detritivors so a few in the Fish Tank also help keep it clean. The most important aspect of the fish is the loading factor which is covered in the Aquaponics University Course.

      Colle Davis – Inventor

  11. Joyy


    I am from India.I liked your concept PFAS very much.You have mentioned ” A 100′ x 100′ ( 30m x 30m) unit produces 80,000 vegetables and 23,000 pounds (10,400 kg) of fish”. I have question that what mean by 80000 vegetables? is it a 80000 plants or how.It it a total number of vegetables that have to take around the year from PFAS.

    2nd – Can we grow any other species of fish than Tilapia.

    3rd – What kind of material you use or recommend for covering the green house.

    WIth warm regards

    1. portfarms


      Thank you. Portable Farms® Aquaponics Systems technology is not a concept, it is a proven aquaponics system. There are hundreds of PFAS Modules in action around the world already.

      A head of lettuce or bunch of greens in one vegetable. One tomato or one pepper is one vegetable. Because nearly everyone wants a variety of produce from their installation we chose the unit to be per vegetable not on a per/kg basis. 80,000 heads of lettuce would certainly weigh less than 34,000 kg and even large tomatoes would not reach that weight, but many vegetables are sold as bunches, heads, each and other measurements. The yield is on an annual basis. Also one tomato plant will produce many tomatoes and only use the surface area in the Grow Table of 30cm x 30cm.
      2. Yes. Catfish, koi, carp, prawns and several other warm water, freshwater species have been raised successfully. We recommend tilapia because it is available nearly everywhere in the world, is easy to raise, is hardy and is a vegetarian.
      3. Any greenhouse film that is guaranteed for 5 years or more will work well. Remember, you will also need shade cloth to protect the young plants.

      Colle Davis – Inventor

  12. hasso

    I am in central VT and we have very cold winters. Can this system be seasonally used? The idea being when the temps get too cold for survival of the fish and plants, can we shut the whole thing down easy and wait until warmer weather to start it up again?

    1. portfarms


      No. The PFAS is designed for year round food production. That’s why they are housed in a climatically adapted structure.

      Colle Davis – Inventor

  13. Tony Agovino

    I was curious, are the roots and the bit of starter medium able to be composted? Thanks.


    1. portfarms


      Yes the remnants of the plants and starter medium can be very easily composted.

      Colle Davis – Inventor

  14. Chimaki Furusawa-Oguz

    Dear Sir,

    I am a small business owner residing in Tokyo.
    I would like to give this a try in Tokyo, Japan, starting at my own flat balcony which is about 10sqm (not sqft).
    Are you able help me with this?


    1. portfarms


      That is a very small space to use for a PFAS even in metric, but ‘yes’ it will work. The PFAS can be scaled down to a Grow Tray of only 3m2 and that will feed one adult. The important parameters are layout, light and temperature must be observed the same as in a larger Unit. If you enclose the balcony to keep the bugs and weather out, insure 6 hours of direct sunlight (or provide grow lights) and keep the temperature between 4 and 40 C, you will have great success. You also need to take the AU Course so you can receive the PFAS Kit.

      I trust this helps.

      Colle Davis – Inventor

  15. Sam Martinez

    What is the cost for a do it yourself system to feed two adults?
    I would install everything into my own building.
    How much room would a small system like this take?


    1. portfarms


      The questions are answered at least a half dozen times on the website. It takes 25 sq ft of grow space to feed one adult year round. The cost of a small system is covered on .

      Colle Davis – Inventor.

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