Fish Sh!t Organic Soil Conditioner is a concentrated, living biological amendment developed to improve root-zone activity, fertilizer efficiency, plant development, and growing-medium health.
Produced by Fish Head Farms through a closed-loop aquaponic process, Fish Sh!t contains more than 4,000 distinct microbial species and billions of living microorganisms in every dose. This diverse microbial community helps establish a productive biological relationship between plant roots, nutrients, and the surrounding growing medium.
The microorganisms help break down complex organic and synthetic materials, releasing existing nutrients into more plant-available forms. This biological activity supports nutrient uptake, root development, soil structure, water retention, drainage, and plant vigor throughout the growing cycle.
Available in 5-, 10-, and 20-liter sizes, Fish Sh!t provides scalable treatment options for large gardens, greenhouses, nurseries, hydroponic facilities, landscaping operations, and commercial cultivation programs.
How Fish Sh!t Works
Fish Sh!t introduces a broad ecosystem of living microorganisms into the rhizosphere—the biologically active area immediately surrounding plant roots.
Once applied, these microorganisms interact with organic matter, fertilizer inputs, and the growing medium. They help mineralize nutrients that may otherwise remain unavailable, allowing plants to use the existing fertility program more efficiently.
This activity supports stronger root systems, improved soil biology, better moisture management, and healthier plant development from seedling through harvest.
Ideal Applications
- Commercial cultivation operations
- Greenhouses and nurseries
- Indoor and outdoor gardens
- Fruits, vegetables, and herbs
- Flowers and ornamental plants
- Large gardens and raised beds
- Lawns and landscaping programs
- Trees and shrubs
- Seedlings and transplants
- Soil-based production systems
- Coco and soilless substrates
- Hydroponic growing systems
- Organic cultivation programs
- Conventional fertilizer programs
- High-volume irrigation and feeding programs
Available Sizes and Approximate Coverage
5-Liter Container
- Treats up to approximately 2,500 gallons
- Suitable for large gardens, smaller greenhouses, nurseries, and regular professional use
10-Liter Container
- Treats up to approximately 5,000 gallons
- Suitable for medium-sized commercial cultivation and irrigation programs
20-Liter Container
- Treats up to approximately 10,000 gallons
- Suitable for large greenhouses, commercial farms, hydroponic facilities, and high-volume applications
Actual coverage depends on the crop, growing medium, plant stage, and application rate.
General Application Guidance
Shake or agitate thoroughly before use. Dilute with water according to the current product label and the requirements of the growing medium.
Fish Sh!t can be incorporated into regular watering or feeding programs and used throughout the growing cycle. Application rates may vary between soil, coco, soilless, and hydroponic systems.
Fish Sh!t is a biological soil conditioner rather than a complete fertilizer. Continue providing the nitrogen, phosphorus, potassium, and other nutrients required by the crop.
Nutrient Compatibility
Fish Sh!t works with organic and synthetic nutrient programs, allowing growers to add broad-spectrum biological activity without replacing their preferred fertilizers.
When combining it with unfamiliar fertilizers, pesticides, or crop-production products, conduct a small compatibility test before preparing a complete mixture.
Avoid combining living microbial products with sterilizing agents, disinfectants, or treatments intended to eliminate microorganisms unless the applicable labels specifically permit the combination.
Certifications and Sustainability
- 100% organic formulation
- OMRI Listed for organic use
- USDA BioPreferred certified
- Manufactured through a closed-loop aquaponic system
- Compatible with organic and conventional fertility programs
- Formulated without added fertilizer salts
Why Growers Choose Fish Sh!t
Fertilizer only benefits plants when its nutrients become accessible to the root system. Fish Sh!t supports the biological processes that help convert existing nutrients into usable forms while encouraging a healthy and active root-zone environment.
The availability of 5-liter, 10-liter, and 20-liter containers gives growers the flexibility to select the appropriate volume for their operation—from large gardens and nurseries to commercial greenhouses and high-volume hydroponic facilities.
Activate the root zone. Improve nutrient efficiency. Support healthier plants at every scale. 
