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Prodigious Organic Diffusion: RAS

(ultilising nature to passively purify water)

by Aquafarmer Australia Pty Ltd



The existing RAS aquafarming/aquaculture science is, in my professional opinion, a reckless adventure with little potential for long term commercial application in aquaculture.

RAS is the ugly battery hen system of fish culture.

Unfortunately I receive many calls, every year, requesting help with RAS systems that are little more than swimming pool technology. Their systems and financial investment are beyond help. Check Out https://www.facebook.com/aquafarmeraustralia?fref=ts


However, if approached correctly, RAS should be a commercially viable investment. RAS is high end culture and should not be undertaken by the untrained. And please, understand, that throwing money at RAS will not make it successful. Understanding the intricate nature of closed cycle water chemistry and having an intimate knowledge of the species will assist. However this is only where you start.

I believe there is a better way, where RAS aquafarming is a legitimate business with sustainable profit margins. So let us examine the reasons driving the gamble and unsupported fashion that is currently RAS and make some commercial sense of fish farming in tanks. Hence the POD design which is a development of a Walt Disney design back in the 1950's. This passive system was how Disneyland purified its water.


The reason for RAS, in the first place, was to increase overall control over production and not to excessively increase biomass per cubic meter. Unfortunately both purposes have never been achieved, successfully over time. Do you know of any RAS ventures that are twenty years old?


For an example, one Barra farm, near Newcastle, in Australia claims (they all do) to be the most successful, and utilise the most efficient filtration technology. However, on close inspection the farm uses pristine ground water at the exchange rate of up to 50% per day in a flow to waste system.

Hardly RAS, would you think? I wonder how such systems fool EPA?

In reality such systems are illegal and the operator's claims do not reflect the investors in this company.

As with all investor driven RAS projects, they are livid at many broken promises.

Unfortunately, such goings-on represent a common theme in RAS and aquaculture in Australia. Consequently we have coined the term Aquafarmer as a more honest and legitimate term to describe commercial aquaculture.

If you do not agree with anything I say, I am more than happy to debate any issue at any time. So long as it is in public. My disgust at much that happens in this country is common knowledge.

Unfortunately, I have experience in such matters as my work often involves private consultancy after the fact. And hey, yes I was the aquaculture park manager for Cummins Corp before becoming Director of Aquaculture. Once the true nature of CC was revealed I resigned, on the spot with no entitlements.

I resigned in the light of unprofessional investor deception.

Unfortunately, it is the glorious RAS claims, so well cloaked in 'technology', and so closely associated with such deception that captures unaware investors.

There is a particular RAS farm in NSW. It has been in operation for over ten years and still only produces less than 50 tonnes per annum. Why? Especially when it has seen considerable government grants? Or is that the reason? Just another bloody shop front facade looking to milk more investors?

Such is my disgust at the facarde of RAS. Indeed there are over 100 million dollars' worth of defunct aquaculture facilities between Sydney and the Queensland border. All of which have been supported by government funding. Tell me alot about fisheries scientists. None of it good.

And such is the nature of RAS in much more than general terms. If you think that statement harsh just talk to any RAS investor who has lost his family home in the beliefs of those only focused on a quick dollar. I can link you up with at least one hundred sad stories.

This is the sanctified state of a country given into small minded greed and where such corporate dealings should be illegal. And fisheries is no better. Very expensive fisheries research to support aquaculture and yet there has been no new aquaculture in fifteen years. Disgraceful!

RAS systems, like the one mentioned above stand as glorious examples of how to manipulate government grant funding, supply the appearance of legitimate aquaculture and provide the successful shop-front by which such companies fleece investors.

Such companies are in the fleecing business not the aquaculture business. Please, never invest in RAS unless you understand the processes completely.


Overview Summary of a 200 Tonne RAS Design


RAS Design

Looks Good

Impressive Design

Only costs $7,000,000

Life span = 6 years (in reality only 2 years)

Total Expected Production = 1.2 million tonnes @ $10 per kg = $24,000,000

Cost of production = 85% = $20,400,000

Less Construction $7,000,000

= $27,400,000

Total Profit = LOSS of $3,400,000

Just like the balloon above, this company was nothing but hot air. And yet it traded for over five years on the belief of investors that RAS was something legitimate for the future.

I worked there to support the families who invested and believed in the dream of RAS.

I resigned the day I found out devious policies and procedures were being carried out in my name without my knowledge.





Prodigious Organic Diffusion RAS

© K J Gordon



Variable Fish Farm Design Concepts

Please Note: To date, no RAS production of coral trout has ever been carried out or even sent to small scale trial.


Too Simple?

Or simply, sustainable aquafarming?


POD stands for Prodigious Organic Diffusion or simply, large scale use of natural organisms to remove, filter and diffuse organic loading.

Yes RAS cannot get much simpler. And YES, that is the entire point.


To achieve these claims the design incorporates factors which retain a high density production RAS format however, and this is a fantastic point, to achieve consistent culture control the POD Design includes reliance on ponds and natural filtration techniques. Why change a system that works? Especially when it is free.

The reason for this is simple. Ponds naturally filter water, both mechanically and biologically and passive filtration reduces filtration costs to almost zero while using natural food chains and organisms to re-purify RAS water..

This simple application of passive filtration reduces running costs dramatically. It reduces fish stress and results in high quality product. No other system can provide such stability in production and quality.

POD RAS©K J Gordon

And, All POD RAS aquafarming systems only use ONE circulating pump.

Growth rates are uniform.

The quality of life is greatly enhanced.

Consequently the quality of product is high.



POD RAS designs always incorporate five distinct working areas to the Farm, based around the above principle.

1…..Broodstock Facility

For a more complete explanation on POD RAS Click Here


Enquiries are free and confidential to disgust your situation.


K J Gordon Science Fiction