BALANCING AN AQUAPONICS SYSTEM
There are several items that needs balancing in an aquaponics system
1. Nitrate level ~ high: Nitrogen-eating bacteria converts Ammonia to Nitrate
2. Water pH level ~ 7.0 optimum
3. Sodium salts concentration ~ low
4. Iron (Fe) addition
5. Fish feed
BENEFITS OF AN AQUAPONICS SYSTEM
There are a lot of benefits of managing an aquaponics system, such as:
1. Conservation through constant water reuse and recycling
2. Organic fertilization of plants with natural fish emulsion
3. The elimination of solid waste disposal from intensive aquaculture
Aquaponics Technology
Harmonising Nature and Technology with Aquaponics
Born from the abstract philosophy of ecocentric ideals, aquaponics has emerged at the very frontier of agricultural technology. Yet, many years after the modern concept was first realised it has yet to receive the commercial recognition that might unlock its true potential, writes Adam Anson, reporting for TheFishSite.
By definition, aquaponics is the symbiotic cultivation of plants and aquatic animals in a recirculating environment. What it could offers to the world of aquaculture and agriculture is hugely promising, yet its name is rarely uttered within the food sector.
Advocates of aquaponics will say that a well balanced system could eradicate the costs of feed, supplements, continuous employment and waste management. In return, providing a variety of high quality, natural food products in high yielding quantities, but the reality of the technology in practise today adheres to few of these promises.
Modern aquaponic systems usually take place within greenhouses in order to maximise conditions. Water from the fish tank is filtered and recirculated by the biological methods of the plant. Ammonia, nitrates, nitrites, and phosphorus are stripped away and then the freshly cleansed water is recirculated back into the fish tanks. In return, nutrients generated from fish manure, algae, and decomposing fish feed - that would be toxic to the fish - serve as liquid fertilizer to hydroponically grown plants.
Essentially what these systems create is a self sustaining renewable system that does not require fertilisers for the plants, or fresh water for the aquatic animals. Current systems still require the addition of fresh salt and water replacement for evaporation and plant uptake, but in principle even these inputs could be eliminated.
Advocates of aquaponics will say that a well balanced system could eradicate the costs of feed, supplements, continuous employment and waste management. In return, providing a variety of high quality, natural food products in high yielding quantities, but the reality of the technology in practise today adheres to few of these promises.
Modern aquaponic systems usually take place within greenhouses in order to maximise conditions. Water from the fish tank is filtered and recirculated by the biological methods of the plant. Ammonia, nitrates, nitrites, and phosphorus are stripped away and then the freshly cleansed water is recirculated back into the fish tanks. In return, nutrients generated from fish manure, algae, and decomposing fish feed - that would be toxic to the fish - serve as liquid fertilizer to hydroponically grown plants.
Essentially what these systems create is a self sustaining renewable system that does not require fertilisers for the plants, or fresh water for the aquatic animals. Current systems still require the addition of fresh salt and water replacement for evaporation and plant uptake, but in principle even these inputs could be eliminated.
Practical Uses
The use of aquaponics is not a new idea. Some people point back to ancient Egypt when tracing its roots, but a modern view of aquaculture stems from the permaculture movement that began as an agro-ecological design theory in the 1970s.
Developed by Australians Bill Mollison and David Holmgren, the idea was used to create stable agricultural systems. This was a result of their perception of a rapidly growing use of destructive industrial-agricultural methods. Since then, aquaponics has become a movement in its own right, serving as a model of sustainable food production for both land-based and aquatic organisms.
A recent publication by the National Sustainable Agriculture Information Service (ATTRA) took a look at present day aquaponic systems in the US and current research into the production methods. According to the publication, Aquaponics - Integration of Hydroponics with Aquaculture, farmers are beginning to take an increasing interest in aquaponics due to the low input and waste management costs and also the green credentials that they provide.
For all its potential aquaponics must currently utilise complex technology and the skilled ability of workers to simultaneously monitor, manage and market the different types of agricultural products it creates. However, recent innovations have transformed aquaponic technology into a viable system of food production, claims the report. These systems can be highly successful, but they still require special considerations. Knowledge of both hydroponics and aquaculture are currently essential to the management of an efficient system.
Not all plants are adapted to strive in aquaponic greenhouses. Similarly, nor are all aquatic creatures suited to aquaculture systems. Furthermore, those plants and fish often require specific conditions to strive. pH, temperature, oxygen levels, feed are just some of the aspects that must be managed for optimum growth. It is the bringing together of these right conditions that makes aquaponics so difficult.
On top of that, managers must also harmonise the stocking densities of the chosen plants and animals. "Matching the volume of fish tank water to volume of hydroponic media is known as component ratio", explain the report. "Early aquaponics systems were based on a ratio of 1:1, but 1:2 is now common and tank: bed ratios as high as 1:4 are employed. The variation in range depends on type of hydroponic system (gravel vs. raft), fish species, fish density, feeding rate and plant species,"
However, if the basic set up of the system is correct, yields can more than compensate for the hard work. Not only will the input cost be minimised, but also the value of the product will be high. Products should be well managed and healthy, containing no artificial chemicals, or hormones and having no adverse effect upon the environment.
The products can then be marketed as organic and in return demand a greater price at market. Unfortunately, although organic aquaculture has a valued market in many countries, there has been no global consensus on its definition and a US Department of Agriculture accredited organic label has remained entirely allusive. For this reason, a movement towards organic aquaculture has been severely hampered.
A recent publication by the National Sustainable Agriculture Information Service (ATTRA) took a look at present day aquaponic systems in the US and current research into the production methods. According to the publication, Aquaponics - Integration of Hydroponics with Aquaculture, farmers are beginning to take an increasing interest in aquaponics due to the low input and waste management costs and also the green credentials that they provide.
For all its potential aquaponics must currently utilise complex technology and the skilled ability of workers to simultaneously monitor, manage and market the different types of agricultural products it creates. However, recent innovations have transformed aquaponic technology into a viable system of food production, claims the report. These systems can be highly successful, but they still require special considerations. Knowledge of both hydroponics and aquaculture are currently essential to the management of an efficient system.
Not all plants are adapted to strive in aquaponic greenhouses. Similarly, nor are all aquatic creatures suited to aquaculture systems. Furthermore, those plants and fish often require specific conditions to strive. pH, temperature, oxygen levels, feed are just some of the aspects that must be managed for optimum growth. It is the bringing together of these right conditions that makes aquaponics so difficult.
On top of that, managers must also harmonise the stocking densities of the chosen plants and animals. "Matching the volume of fish tank water to volume of hydroponic media is known as component ratio", explain the report. "Early aquaponics systems were based on a ratio of 1:1, but 1:2 is now common and tank: bed ratios as high as 1:4 are employed. The variation in range depends on type of hydroponic system (gravel vs. raft), fish species, fish density, feeding rate and plant species,"
However, if the basic set up of the system is correct, yields can more than compensate for the hard work. Not only will the input cost be minimised, but also the value of the product will be high. Products should be well managed and healthy, containing no artificial chemicals, or hormones and having no adverse effect upon the environment.
The products can then be marketed as organic and in return demand a greater price at market. Unfortunately, although organic aquaculture has a valued market in many countries, there has been no global consensus on its definition and a US Department of Agriculture accredited organic label has remained entirely allusive. For this reason, a movement towards organic aquaculture has been severely hampered.
Not So Radical Thinking
In many ways, the complexity of aquaponics requires an understanding of all life. Farmers must engineer a whole ecosystem that caters for the need of all the plants and animals that live within it. And yet, essentially, aquaponics lets nature do what it does best by allowing it to deal with the complex underworld of interactions, soil structures and micro-organisms that we really do not understand. Rather than attempt to bend nature to the whim of human knowledge, it realigns our knowledge on its path.
Aquaponics should not be judged and seen merely through the green-tinted lenses of eco-friendly eyes, it should be mutually acknowledged for the advantages it can provide on economic, health and market grounds. Not only does it harmonise yield products, but it also fuses natural processes with highly advanced technological ones to derive the best of both.
Unfortunately, with the rapid advancement of huge machines and intensive monoculture operations behind us, it can be difficult to look again and see a natural agricultural process take its place and be just as efficient. But time and again, the problems that intensive operations encounter have proved difficult to overcome with manmade contraptions. Nature already has the answers to most of our problems, it is merely learning to see and listen to them that often hinders our advancement.
Aquaponics should not be judged and seen merely through the green-tinted lenses of eco-friendly eyes, it should be mutually acknowledged for the advantages it can provide on economic, health and market grounds. Not only does it harmonise yield products, but it also fuses natural processes with highly advanced technological ones to derive the best of both.
Unfortunately, with the rapid advancement of huge machines and intensive monoculture operations behind us, it can be difficult to look again and see a natural agricultural process take its place and be just as efficient. But time and again, the problems that intensive operations encounter have proved difficult to overcome with manmade contraptions. Nature already has the answers to most of our problems, it is merely learning to see and listen to them that often hinders our advancement.
credit to:
http://www.thefishsite.com/articles/570/harmonising-nature-and-technology-with-aquaponics
http://www.thefishsite.com/articles/570/harmonising-nature-and-technology-with-aquaponics
Fish Off!
I went to a fish farm earlier today in Hulu Langat Batu 14 and bought some tilapia and jelawat fry…after equalizing the temperature of the water in the tank and the water in the bag, I went ahead and introduced the fry into the fish tank…may they grow healthily!
Water pH: 7.8
EC: 0.18
Fishes: Tilapia (30), Jelawat (30)
Read More..
Water pH: 7.8
EC: 0.18
Fishes: Tilapia (30), Jelawat (30)
Tilapia fry
Jelawat fry
Drain out the water, dont want to headstart the algae!
In you go!
Healthy Produce Versus Modern Technology
Produce In The 21st Century
Lately I have been watching the world from the position of, we need to get moving faster with the contamination in our food!
I seriously applaud all the urban farmers and teachers who are out there showing people how to get back to basics. We seriously need to know how to do this for ourselves and our families. I cannot stress enough, how important it is, to teach your children how to grow food. They are the future and we cannot leave them to rely on a system of food, which has a very dubious track record.
I personally no longer trust the agricultural industry has my families best interest at heart. I am going to stick with the Urban Farmers and small farms that grow food with the old fashioned hands on method. At least they know how to grow potatoes out of an old sack, or combine fish and produce together to feed the family. They use homegrown methods without all the fancy hype and cell splicing.
From My Prospective
I see noses growing every time I have to hear the speech about "in the best interests of the future." The only interests I see are profits and lavish lifestyles from the people who give the speeches. Who decided for my family what their best interests are, when companies no longer have to label GMO? What happen to my rights to have a say and choose?
Big agriculture have given us Terminator Seeds, GMO, Round-Up and other wonderful chemicals which can cause eventual death on wildlife, insects and humans. Lets name a few poisons that agricultural companies (Monsanto) have played a part in inventing shall we: Agent Orange, DDT, Bovine Growth Hormone (rBGH), Dioxins, Atomic Bombs, Nuclear Weapons and Poisonous Gases.
Engineered proteins and bacteria can be manipulated inside of the cell of a plant anyway the biologist wants. The gene will be manipulated to introduce bacteria. Please do not give me the lecture about any of these being safe either, because there are flaws in this technology. The magic does not always work and science knows this but will pretend to convince humanity of something else. There are NO increases in yield and Monsanto knows it. Watch the video below and learn from someone who is educating us all on GMO. This video is VERY EYE OPENING!
"The trans-genes from GMO can spread from crops to soil organisms and into the bacteria in the soil. It can also spread to the bacteria in your gut. There are several studies that show if you eat engineered crops, the bacteria from them will find their way into your gut. Toxic proteins are a lot more than we know. In a nutshell, we dont know what we are doing." -Dr. Thierry Vrain
Engineered proteins and bacteria can be manipulated inside of the cell of a plant anyway the biologist wants. The gene will be manipulated to introduce bacteria. Please do not give me the lecture about any of these being safe either, because there are flaws in this technology. The magic does not always work and science knows this but will pretend to convince humanity of something else. There are NO increases in yield and Monsanto knows it. Watch the video below and learn from someone who is educating us all on GMO. This video is VERY EYE OPENING!
"The trans-genes from GMO can spread from crops to soil organisms and into the bacteria in the soil. It can also spread to the bacteria in your gut. There are several studies that show if you eat engineered crops, the bacteria from them will find their way into your gut. Toxic proteins are a lot more than we know. In a nutshell, we dont know what we are doing." -Dr. Thierry Vrain
"Most of the major crops have been created." -Dr. Thierry Vrain
“A nation dominating the world by its technology will soon become a tyranny that will be hated by those who are tyrannized." -Oliver Stone
Where is the future of food is going?
If our water is poisoned, our soil is depleted and our seas are radiated what are we supposed to eat? Only one thing I can see that will be able to help bring food to nations in a safe and productive way...Aquaponics.
So what actually can aquaponics do in the way of feeding people? I personally believe if you allow every small community to grow their own food supply by using aquaponics, it can change lives, feed communities and the education will be worldwide. I get so passionate about people having enough to eat. It is one of my greatest driving forces in this world and I believe aquaponics can do that for all of us.
We are in trouble folks and we have to start doing things differently, without toxins, without protein crystals and without growth hormones.
Aquaponics Fish and State Regulations
Why Its Important To Know The Regulations
Most of us do not like regulations or paying for licenses and yearly fees. I totally get that because it is a pet peeve for me too. However when it comes to buying, keeping and selling of fish with aquaponics there are good reasons why everyone needs to understand the state laws.
Because Aquaponics is a fairly new way to grow produce and proteins together there are a lot of regulation loopholes at this time. Some people will take advantage of this to make a quick dollar while jeopardizing the safety of others.
This month the ASC Magazine started a series of articles about raising fish in aquaponics, what types of fish and state regulations. ASC contributing writer Adam Cohen (who is also Vice Chairman and Director of Education of the Aquaponics Association) started the series off, with the state laws in Texas. Click here to read more about the article:
One of the things the Aquaponics Association does, is to help people with the education process regarding aquaponics. Being a part of the Aquaponics Association also tells other people that you understand these state requirements and will follow the rules.
One of the things the Aquaponics Association does, is to help people with the education process regarding aquaponics. Being a part of the Aquaponics Association also tells other people that you understand these state requirements and will follow the rules.
There are people on the internet who will tell you that you can raise fish, sell fingerlings and make lots of money in the process. Thats not exactly true, especially if the issue of state permits and regulations is never mentioned or just lightly touched upon. What will eventually happen to other breeders who do follow the regulations, is that loosely worded behavior like this, will result in serious clamp downs on everyone else involved in the aquaponics industry.
Before anyone considers buying fish, you need to find out if your state will even allow you to keep certain species at your home or place of business. Find out what the permitting restrictions are first or what species of fish you can keep. The link we are providing, has the phone numbers and addresses for every state from the US Fish and Wildlife service. CLICK HERE
Before anyone considers buying fish, you need to find out if your state will even allow you to keep certain species at your home or place of business. Find out what the permitting restrictions are first or what species of fish you can keep. The link we are providing, has the phone numbers and addresses for every state from the US Fish and Wildlife service. CLICK HERE
Tilapia Are Considered An Exotic Species.
Many USA states have strict guidelines you have to follow first before you can keep and raise them. In countries like Australia you cannot even handle them. It is against the law.
Important Information You Should Know First
Some internet sites like Craiglist and Pennysavers have people openly selling fingerlings to the public. This is perfectly legal if the breeder is State Certified and carries the special permits to do so.
BEFORE YOU BUY ANY FISH you must find out about the breeder and their permits first. The first time YOU are caught transporting live fish from an illegal breeder, the responsibility is placed back on you! Huge fines or even considerable jail time could result. Additional felonies could be imposed, if the fish you are transporting are infected with bacteria. Therefore you will need to know if there are any parasites, bacteria or other infectious problems with the fish you are buying off the breeder. Check the breeders credentials first with the state or see if there are any complaints filed against the seller.
The biggest concern which the wildlife services have, is releasing some of these introduced species back into USA lakes and streams. Tilapia are prolific breeders and if released into natural waterways, they could quickly take over some of the native species of the local areas. For Tilapia this applies mostly to the warmer waters in the southern states but Tilapia can reach sexual maturity very quickly, so there is a possibility of the young finding their way around.
I would like to mention that the laws apply for different fish species which can also be used in aquaponics systems and not just Tilapia.
These rules and regulations have already been set up from each state around the USA. We are not here to tell you what to do but rather point out there are laws. Here are just some of the state regulations below:
Indiana Laws: Click on this link
Texas Law: Click on this link
Iowa Law: Click on this link
Maine Law: Click on this link
Minnesota Law: Click on this link
Wisconsin Law: Click on this link
Tennessee Law: Click on this link
North Carolina: Click on this link
Colorado: Click on this link
The illegal introduction of any fish into any Maine water is a Class E crime, punishable by fines of up to $10,000. Thats a lot of money even if you were not aware of doing something wrong. So before you think you are getting a good deal off someone with 100 fingerlings, that good deal could quickly go sour if you end up with fines or even doing time. All of these headaches for transporting and harboring illegal species, can simply be avoided by doing your homework first!
I have also mentioned these legal requirements in the back of my book the "Essential Fish Care In Aquaponics" because I believe this is very important information for people to know first.
Lesson: Buyer beware! (Caveat emptor)
Warm Regards
Victoria
Aquaponic Abundance with the ASC Magazine
Aqua Abundance and Spencer Curry
Spencer Curry is an owner-operator with Fresh Farm Aquaponics. He is also a writer for the ASC Magazine. Spencers articles come with a lot of enthusiasm and love for this industry. We are very proud to feature this column in our magazine every month. Spencer is showing people of all ages what can be done with all of that youth and energy. We think he is quite a remarkable young man.
Hi everyone welcome back to Aquaponic Abundance!
Article taken from the ASC Magazine March 2015
Last time we talked we went over the specific winter techniques that I’m using on my farm, FRESH Farm Aquaponics. Were located in South Glastonbury, Connecticut.
Currently we have more than a couple feet of snow piled up around our greenhouse. Despite night temperatures well below freezing, our 25 koi are happily swimming in balmy 65 degrees water with daily air temperatures of 75-80?.
We went over how we heat the water (with a Jacuzzi heater), our mini-greenhouses, and the lights we use to accelerate growth during the darker months. Be sure to check out last month’s article for more information.
This month the light starts to come back and the days grow longer. Our plants are starting to perk up and grow, little by little.
The aquaponics system is a marvelous tool for season extension. Even without using grow lights, there are a number of benefits to starting your season off early with an aquaponics system.
Season Extension with Aquaponics
There are many reasons aquaponics is so wonderful for season extension. Aquaponics systems use heat more efficiently, the growing media is always workable and they make use of the little light available most effectively.
Most farmers in our region are busy hibernating at this time of the year. Fields are under thick blankets of snow. Greenhouses are expensive to heat the traditional way, most farmers around here use wood boilers or oil burning ovens to keep their greenhouse air warm.
But as we covered in the last article, it is far more cost-effective to heat the water in the aquaponics system than heating the air in a normal greenhouse. For one, the heat from the water eventually radiates up to the plants leaves.
This is similar to how the heat of the Earth normally radiates up from the soil into the undercarriage of the plants. By heating the water, you heat the roots and plants and the air, all at a fraction of the cost of heating the air by itself!
Eager to get planting but held back by a snowy March?
Luckily, aquaponics growing media is also always workable. The growing medium never freezes. There is no need to wait for soil to thaw out. There is no need to shovel snow or wait for it to melt.
No need to battle early spring weeds or any of the other headaches typically associated with working the land after a hard winter. That means that you can get your plants in the ground as soon as the seedlings are ready.
Finally, aquaponics provides such a rich environment to your new seedlings that they are able to best utilize whatever light there is available in these early months. In normal soil conditions, plant roots must expend energy on extending themselves throughout the soil in search of nutrients.
However in aquaponics, the roots are flooded with vital nutrients, water, and beneficial bacteria.
There is no need to expend resources on root growth, so all energy is directed to actual plant growth. When a plant has so much of its needs cared for, the only limiting factor is the light. That means that whatever light is available, your aquaponics systems will make the best of it!
If you would like to read more about the Aqua Abundance Article...
Subscribe to the magazine by purchasing a lifetime subscription here:
http://aquaponics-how-to-guide.info/aquanewsletter/
OR
You can purchase all the back issues of the ASC Magazine here:
http://aquaponics-how-to-guide.info/magazine_back_issues/
ASC Magazine and OriginOil
The EWS Technology From OriginOil
This month in the ASC Magazine we are highlighting an amazing story from OriginOil.
Sometimes in the world, there are incredible inventions which can change lives for the better and increase business production. OriginOil wrote an amazing article for the ASC Magazine about their EWS technology.
Nicholas Eckleberry is the inventor of the EWS technology along with being co-founder of OriginOil. Nicholas has authored or co-authored thirteen patent applications in the field of algae production and commercialization.
So exactly how what does this technology work?
It takes filthy ammonia, bacteria ridden water and turns it into usable clean water. The water from pictures in the article went from green to clear, which is great news if you want to have healthy fish. We received a photograph from the company showing a man drinking the water after it had been cleaned.
For the aquaculture industry this can easily revolutionize how they keep their ponds clean. The majority of our fish now comes from aquaculture farms. The problem that many farmers face are serious problems with ammonia, bacteria and other nasty things in the water. Many fish die and it can create a huge problem for the industry. The EWS technology can eliminate these issues.
OriginOil are already showing the world that we can use algae as a form of oil and now they are showing the aquaculture industry, they have a solution to the problems with keeping fish ponds clean. The technology is quite remarkable.
If you would like to read more about Septembers cover article please click on the link within the cover picture or you can go here
I could also see how this type of technology could help third world countries have clean drinking water. It can take out bacteria and parasite problems that countries like India have with their water. I can see all kinds of great uses for the EWS technology.
As a matter of fact I was contacted by a man from India who wanted to know more about this type of system for his town. He had seen a highlight of the article and he was very interested to know more. Most of us will never know how precious a clean drink of water is in the western world, but yet it is still a huge problem in places like India.
Warm Regards
Victoria
Technology With Aquaponics ASC Magazine
The APDuino Project Written By András Schreiber
In agriculture the quality and quantity of crops greatly depend on the environmental conditions. In traditional agriculture we can make little impact on most factors. Even if we can make an impact, we often make things worse: just think about all the unnecessary fertilization poisoning underground waters or pesticides poisoning all the bugs most likely playing an important part of the natural cycle.
Fortunately there are new growing techniques (some may be ancient or rediscovered), hydro-cultures, such as Aquaponics that are pointing towards a possible solution for several problems and beyond...
Greenhouses and urban growing conditions (window farms, growing cabinets, etc) are getting more and more spotlight and gaining popularity across the globe, especially as there is an exponentially increasing awareness of global problems. Hydro-culture could also answer challenges of places where water is the most precious resource of all.
In closed systems, however, specifically, it is possible to have a tight control on the environment. Theoretically it is possible to maintain an ideal environment for the exact flora and fauna hosted in the closed environment.
Maintenance of an optimal environment takes effort, tedious execution of checks and prompt actions is needed to balance out changes in the external and or internal conditions and ensure avoidance of stressful imbalances.
Project Goal
The APDuino Project aims to provide aid in automation for the pioneering aquaponics and hydroponics farmers, enthusiasts, researchers in a way that even less technical knowledge is required to build a microcontroller-based automation system than before, whereas unlimited complex computing power is fitted to it through the ubiquitous computing already present: the Internet.
Project output, high-level technical overview
The project produces free, open-source binaries for the popular Arduino Mega 2560 + W5100 EtherShield (or equivalent clones) hardware combo, as a basis for any Node.
Nodes can host many kinds of sensors and actuators, making it possible to monitor environmental conditions such as temperature, humidity, light, conductivity, pressure, water quality, etc. and to interact with the environment by controlling appliances like lights, pumps, heaters, coolers, etc.
Nodes can be wired and configured according to the individual needs and specifications, within the constraints of hardware datasheets and software support. The reference hardware is low cost and widely available and known to aquaponics + arduino enthusiasts. Already several systems have been created based on them prior to APDuino Project, but in a less flexible (if open at all), less adaptable design and implementation.
Besides the official Arduino site and forum, there are tons of blogs, how-to’s, forums and companies providing excellent, reliable documentation on how to wire up the hardware components.
Again, the key difference with APDuino Project is that those programming parts can be skipped; supported hardware can be configured using APDuino Online.
Nodes provide a web-based graphical user interface with charts and interaction with the device; switch between open and closed-loop control, change actuator states, etc.
Key Features:
• No-coding needed to fit supported sensors, actuators
• Closed-loop control (automation) based on custom, user provided logic
• Offline and online data logging
• HTTP API for LAN applications
• Free, open-source
If you would like to read more regarding this article...
You can purchase all the back issues of the ASC Magazine here:
http://aquaponics-how-to-guide.info/magazine_back_issues/
Or
Subscribe to the magazine by purchasing a lifetime subscription here:
http://aquaponics-how-to-guide.info/aquanewsletter/
