Australian Farmers
Looking for a Simpler Way to Build Soil Fertility?
Learn how to produce your own organic biofertilisers using fish and seaweed
—reduce input costs, rebuild your soil health, and rely less on external supply chains.
Natural Inputs, Naturally Good Results
For generations, fish and seaweed have been trusted natural fertilisers that activate soil biology and restore organic minerals and trace elements in the soil.
At SONIC Natural Farming, we use a cold fermentation process, and hardy Aussie soil microbes, to produce 100% natural Liquid Fish and Seaweed Biological Fertilisers.
Living Fertilisers for Living Soil
Stop feeding plants. Start feeding soil life—driving nutritious crops, better moisture retention, and more consistent yields.
Naturally suited to regenerative systems, our fresh, microbially active Biofertilisers stimulate and feed soil microbes, supporting nutrient cycling, improved root growth, and plant immunity.
How To Take Control and Save Big On Fertiliser Costs
Skip the expense of commercial fertilisers and hefty shipping costs with a SONIC DIY Biofertiliser System.
Access raw ingredients and expert training, so that you can produce regular batches of fresh biologically activated Liquid Fish Fertiliser, Liquid Seaweed (Kelp) Fertiliser and Liquid Kelp Probiotic Supplement for Livestock, directly on-farm.
Chat with us about a SONIC DIY System for your farm.
Call 0423 139 578
What You Get With a SONIC DIY System
- Process your own biofertilisers for less than $1.20/Litre
- Assisted set up and 1:1 start-batch training session.
- 100% Australian raw ingredients supplied.
- Quality guarantee on your first three (3) batches.
- Tailored strategies for using Biologicals on your farm.
- Lifetime system operation support.
Noticed Your Soil Isn’t What It Used to Be?
Soil health drives more than just yields—it fuels resilience, productivity, and the long-term future of your farm. When your soil is struggling, everything else suffers.
What Is a Biological Fertiliser?
Across Australia, farmers are discovering the power of working with nature, not against it. Our biofertilisers activate the microbial life that rebuilds soil structure, and delivers organic nutrition, helping to unlock the full potential of every acre.
Feed soil microbes. Build stronger, healthier, more resilient soil—year after year.
Why Use Biological Fertilisers?
- To activate beneficial microbes in the soil
- For nutrient-dense plant growth
- To enhance plant immunity and resilience
- Bioavailable nutrition for soil, crops and animals
- Restores organic minerals and trace elements in the soil
- Safe to handle and safe for the environment
How To Use Biological Fertilisers In Your Farming Sector
Click on Your Farm Type to Explore
Why Choose SONIC Natural Farming?
Benefits you Can Expect

Cost Savings
We help farmers reduce shipping and container costs with our DIY Systems.

Sustainability
All our products are 100% natural and are made using non-powered systems.

Eco-Friendly
Our products are safe and made with all-natural Australian ingredients.
Farmers Feedback
I think it’s doing a fantastic job!
COST SAVINGS
You really can see the difference, just driving up the road. We’re happy, and it has actually saved us a lot of money on extra fertilisers.
HIGHLY RECOMMENDED
I highly recommend the on-farm training, delivered by down to earth people who are knowledgeable and realistic about a simplified approach to working with nature. A wholesome and rewarding experience.
GREAT RESULTS
If I see something once and something that dramatic, I know it’s got to be doing good.
Natural Farming Resources
Where to Learn More and Get Support
Experience unparalleled savings and sustainability with us!
Free Advice – No Strings Attached
Biological Fertiliser FAQ's
Conventional synthetic fertilisers are designed to deliver nutrients rapidly, creating fast and predictable plant responses. When nitrogen, phosphorus, and potassium are applied in synthetic forms, plants often respond with quick greening and a surge in biomass.
Biological fertilisers, on the other hand, work in a fundamentally different way to conventional synthetic inputs. Rather than supplying nutrients in a readily available chemical form, they focus on supporting the living processes within the soil that naturally create fertility over time.
Read article Rethinking Soil Fertility: The True Meaning of Fertiliser
These products begin working immediately by stimulating soil biology and delivering bioavailable nutrients. Results vary depending on soil condition and management practices.
Early benefits such as improved seed germination and plant establishment can be seen quickly, while longer-term improvements—particularly in grazing systems—build over one to three years. In horticulture and orchards, growers often notice improved growth, quality, and extended shelf life of produce with regular use.
Read more about SONIC Biological Fertilisers
Liquid seaweed extracts, such as Seasol, are usually produced using chemical or heat extraction to concentrate certain compounds. While these products are widely used, the process can reduce some of the natural components of the seaweed. Seaweed biofertiliser, on the other hand, is cold fermented, preserving a wider range of nutrients and natural compounds in a form that supports soil biology and plant uptake.
Read Article – Liquid Seaweed Fertiliser Comparison: Ferment Vs Extract
We source both fresh and dried fish waste, generated after processing for human consumption, from a network of fish shops and processors handling ocean-caught fish across Australia. By utilising these by-products, we help divert organic waste from landfill and repurpose it into valuable liquid fish hydrolysate biological fertiliser.
Read article Turning Fish Waste Into Premium Hydrolysate Fertiliser
SONIC biological fertilisers can help balance soil pH over time by improving overall soil function. The microbes in our biologically fermented fertilisers enhance nutrient cycling and soil structure, which can help buffer pH fluctuations and create more balanced soil conditions.
Rather than directly changing soil pH like lime or other amendments, biological fertilisers work by supporting the natural processes that help maintain a more stable and productive soil environment.
Read article Adjusting Soil pH on Australian Farms (and Why Microbes Matter)
SONIC Liquid Fish and Seaweed Biological Fertilisers are used because they provide both plant nutrition and support for soil biology, helping improve overall soil health and plant performance.
Key benefits include:
• Providing fast-available nutrients for plant uptake
• Feeding and stimulating beneficial soil microbes
• Supporting nutrient cycling within the soil
• Improving root development and crop resilience
• Enhancing soil structure and long-term fertility
Liquid fish fertiliser is particularly rich in organic nitrogen and amino acids that support growth, while liquid seaweed contains trace elements and natural plant compounds that help with stress tolerance and overall plant health. Used together, they provide a balanced approach that supports both immediate plant needs and longer-term soil function.
Read article Top 3 Strategies To Get The Most From Your Biological Fertilisers













