You love your plants.

We love their soil.

Joseph Ayoub founder of Swift Grow organic fertiliser
Joseph Ayoub

Swift Grow


Our Founder

Meet the man behind Swift Grow.

River Stone’s founder, Genetics Engineer Joseph Ayoub, had fond, childhood memories of food. However, he realised the delightful flavour and aroma of naturally-grown produce had been gradually diminishing by decades of intensive commercial farming practices.


So, disillusioned with his research laboratory job, Joseph quit his day job in 2007 to set up a small barramundi fish farm in Riverstone, NSW. This farm emulates the natural pristine environment of the species. Joseph’s goal was to remove the toxins and heavy metals typically found in the farmed barramundi. After initial trials he found mercury levels in his fish were still too high and traced the source to commercial fish feed from unsustainable sources. So, Joseph went developed his own fish feed sourced from sustainable ‘clean and organic’ inputs to ensure nil toxic metal content.


In the pursuit of attaining premium quality barramundi protein, a game-changing twist of events occurred when the fish manure was discarded as fertiliser on the farm’s nearby trees and vegetable patch. To Joseph’s surprise, the fish manure caused the trees and plants to grow prolifically, and their fruit yield, size, colour and aroma was so amazing that he was transported to the produce of his childhood memories. The irony was, the gold was not so-much in the fish but in the fish manure.


This accidental discovery put Joseph on a course to enhance the manure and remove the smell. Joseph upgraded the farm to use Recirculation Aquaculture Systems which in turn allows total control of the input and outputs, including the harvesting of the fish excrement as a by-product which is purified and sold as a concentrated liquid fertiliser now known as Swift Grow.


Swift Grow is sold in New Zealand by NZ Premium Health Ltd.

Did you know?

Soil isn't what it used to be.

Today’s modern agricultural systems are working with soils that contain far less carbon than they did prior to the implementation of modern agriculture. Simply put, they’re not in great shape. Commercial fertilisers have doubled the synthetic nitrogen and phosphorous in our soils in the past century – which isn’t good news. Agriculture has had the largest impact on the nitrogen cycle in over 2.5 billion years.

Organic fertiliser boosts soil health
Sustainable fish farm

More about us!

Sustainable fish farm.

Swift Grow is produced at a River Stone Fish Farm, a sustainable barramundi farm in Australia. It is an organic solution rich in macro and micronutrients. The primary macronutrients are nitrogen, phosphorus and potassium (N.P.K) you may be most familiar with these three nutrients, as plants require these in larger quantities. The secondary macronutrients sulphur, magnesium, carbon, and calcium. Although they are called secondary, these elements are not necessarily needed by plants in smaller quantities. The micronutrients nutrients, also known as essential elements, are required in very small quantities. If any micronutrient is deficient, the growth of the entire plant will not reach maximum yield.

Our story

The origin of our fish water.

River Stone Fish Farm’s primary goal was to produce sustainable barramundi free from contaminants. To do this we had to eliminate all commercial fish feed, and started growing our own – for sustainability and to remove all toxins. After eliminating fish meals from the barramundis’ diets, we dropped contaminates by 90%. However, the 10% still present was still toxic. These contaminants were introduced to our feed through the use of commercial fertilisers. So, we started utilising our fish water to grow the crops in the feed, and now have eliminated all contaminants.


Today, we bottle our fish water for you, with the name Swift Grow.

Fish farm water is used to make organic fertiliser

The Swift Grow effect

Achievements and impacts.

After 12 years of research and development and 2 years of several university-controlled trials, commercial field trials with nurseries, golf courses, permaculture groups and hundreds of Mum & Dad gardeners, Swift Grow fertiliser has won the 2020 City of Parramatta Excellence in Innovation award by The Western Sydney Awards for Business Excellence.

The primary benefit of Swift Grow is the restoration of the natural soil micro-organisms (active lactobacillus, fungi, yeasts and other photosynthetic bacteria). Studies have proven that the decrease in soil quality is caused by soil microbial depletion which can also cause topsoil erosion that contributes to climate change. Swift Grow can help to reverse this cause of climate change and has been certified by the NSW Department of Primary Industry (see attached) as: ”contains microbial components that play a dual role of promoting healthy soil, and those same components also bio-suppress and helps control harmful micro-organisms/pathogens in soils. That dual role makes Swift Grow safe to use in soils in NSW and elsewhere.”

During the first 3 months of Covid pandemic, the emerging company pivoted to address the virus by developing a TGA approved disinfectant and sanitiser from fish peptides. These products destroy Covid on contact and remains active until washed off with water. The company has gone on to become a preferred disinfectant supplier to four Australian state governments.

Developed from odourless fish manure, the nutrients in Swift Grow helps protect bees from pathogens that are endangering bee populations. See attached nursery testimonial. This is supported by university publications and hundreds of field trials.

Local nurseries, golf courses, gardeners and farmers are now using Swift Grow to restore their soil micro-organisms to optimal health. This has resulted in certified organic fruit, vegetables and flowers the way they used to taste and smell along with their nutritional benefits on human health and well-being. The 2019 bushfire ravaged farms and forest parts of NSW South Coast are being rejuvenated back to life with Swift Grow fertiliser to the amazement of farmers, who had previously given up hope.

With funds injection the NSW Export Grand and guidance from the NSW Treasury and AusTrade, Swift Grow is now making its mark on the world farming stage with increasing volume exports to the UAE, France and the UK.