Fish Sh!t Organic Soil Conditioner is a concentrated, living biological amendment formulated to improve root-zone activity, nutrient efficiency, growing-medium health, and overall plant development.
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 ecosystem helps establish a productive relationship between plant roots, nutrients, and the surrounding growing medium.
The microorganisms help break down complex organic and synthetic materials, releasing existing nutrients into forms that plants can access more efficiently. This biological activity supports nutrient uptake, root development, soil structure, water retention, drainage, and plant vigor throughout the growing cycle.
The convenient 250 mL bottle is suitable for home gardens, indoor growing systems, houseplants, raised beds, and smaller hydroponic or greenhouse applications.
How Fish Sh!t Works
Fish Sh!t introduces a broad population of living microorganisms into the rhizosphere—the biologically active area immediately surrounding plant roots.
These microorganisms interact with organic matter, fertilizer inputs, and the growing medium to help mineralize nutrients that may otherwise remain unavailable. This allows plant roots to access and use the existing fertility program more efficiently.
Increased biological activity also supports stronger root systems, growing-medium structure, moisture management, and plant development from seedling through harvest.
Ideal Applications
- Indoor and outdoor plants
- Fruits, vegetables, and herbs
- Flowers and ornamental plants
- Houseplants and container gardens
- Raised beds
- Lawns and landscaped areas
- Trees and shrubs
- Seedlings and transplants
- Soil-based growing systems
- Coco and soilless substrates
- Hydroponic growing systems
- Small greenhouses
- Organic cultivation programs
- Conventional fertilizer programs
General Application Guidance
Shake thoroughly before use and dilute with water according to the current product label and 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.
The concentrated
250 mL bottle can treat up to approximately 125 gallons, depending on the selected application rate.
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 plant.
Nutrient Compatibility
Fish Sh!t works with organic and synthetic nutrient programs, allowing growers to introduce microbial activity without replacing their existing fertilizers.
When combining it with unfamiliar fertilizers, pesticides, or other crop-production products, conduct a small compatibility test before preparing a complete mixture.
Avoid combining living microbial products with sterilizing treatments or disinfectants intended to eliminate microorganisms unless the applicable product 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 growing programs
- Formulated without added fertilizer salts
Available Size and Coverage
- Container size: 250 mL
- Form: Concentrated liquid
- Potential coverage: Up to approximately 125 gallons, depending on application rate
Why Growers Choose Fish Sh!t
Plants benefit most from fertilizer when nutrients are accessible to the root system. Fish Sh!t supports the biological processes that help convert existing nutrients into more usable forms while encouraging a healthier, more active root-zone environment.
The concentrated 250 mL bottle provides a practical size for home gardeners and smaller cultivation systems that want to incorporate broad-spectrum microbial activity into an established watering or nutrient program.
Activate the root zone. Improve nutrient availability. Support healthier plants naturally. 
