Comparison: Best Organic Liquid Fish Emulsion (Updated | Dec 1st)
If you’re looking to give your garden a natural boost, organic liquid fish emulsion might just be your secret weapon. But with so many options on the shelves, how do you know which one delivers the best results without breaking the bank? We’ve dug into the details, tested the top contenders, and compared their ingredients, effectiveness, and value so you don’t have to.
- Best for cold-pressed power: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for fast-acting kelp: Down To Earth All Natural Fertilizers Organic Liquid Fish & Kelp Concentrate – Plant Food for Vegetable Gardens and Flower Beds – Makes up to 32 Gallons 2-4-1
- Best for sea-soil blend: GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens
- Best for macro-micro boost: GS Plant Foods Organic Liquid Fish Fertilizer – Natures Growth Boost
- Best for pure hydrolysate: Indian River Organics OMRI Listed Organic
- Best for balanced 2-3-1: GS Plant Foods Liquid Fish Fertilizer – Organic Material Review Institute Listed (1 Gallon) – Natural Hydrolyzed Fish Fertilizer for Gardens
- Best for enzyme soil boost: Just Scentsational Bare Ground Solutions TP-128G Trident’s Pride Organic Liquid Fish Hydroponic Soil Fertilizer
- Best for kelp-infused formula: Organic Fish Emulsion with Kelp
- Best for amino-rich concentrate: Safergro Aqua Power Certified Organic Fish Emulsion Concentrate
- Best for burn-free growth: Harris Organic Plant and Lawn Fertilizer
Product Comparison: Best Organic Liquid Fish Emulsion
1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants, Flowers, Fruits & Vegetables, 2-3-1 NPK – Sustainably Sourced and Hydrolyzed for Steady Growth
- ORGANIC FISH EMULSION FERTILIZER – Our liquid fish fertilizer is made from sustainably sourced fish emulsion and we use up all the parts that would otherwise go to waste. Using an environmentally conscious method, ingredients are refined fresh and 100% cold pressed to help retain all of the nutrients, vitamins, and amino acids needed to grow healthy plants.
- GROW PLANTS NATURALLY – This wonderfully organic alternative to synthetic fertilizer contains a 2-3-1 NPK ratio perfect for light and frequent applications. Promotes steady, healthy plant development throughout the growing season.
- ENRICHES SOIL – Helps build a strong foundation for your organic garden to thrive on! Use as an effective soil drench to improve fertility, structure, and encourage the growth of beneficial microorganisms like fungi in your garden’s soil.
- PRODUCE MORE – Get the most out of your fertilizer and your garden! This organic garden fertilizer helps to increase crop yields and flower blooms. Gentle enough to use as a foliar spray makes this the perfect fish fertilizer for plants, flowers, and vegetables.
- SMELL THE DIFFERENCE – This fertilizer smells like fish because it’s made from fish! Crafted with high-quality concentrated and undiluted hydrolyzed fish emulsion each bottle gives off a pungent fishy aroma. When compared, we see it like this – if it doesn’t smell, then it’s not real fish!
Down To Earth All Natural Fertilizers Organic Liquid Fish & Kelp Concentrate – Plant Food for Vegetable Gardens and Flower Beds – Makes up to 32 Gallons 2-4-1, 32 oz
- Fast‑acting liquid formula: Perfect for foliar feed or soil drench applications, supporting quick absorption and growth stimulation.
- Stimulates overall plant vigor: High phosphorus aids flowering and fruiting, while nitrogen supports lush foliage and root development.
- Organic & soil‑friendly: Helps promote beneficial microbial activity and sustainable soil health due to its fish and kelp base
- Versatile application rates: For general garden use: ¼–½ cup per gallon of water; for containers: 2–4 Tbsp per gallon; for houseplants: 2 Tbsp per gallon, repeated every 2–4 weeks depending on growth stage
- Watch out for odor: While extremely effective, many users report a strong fish-like odor characteristic of fish emulsions—though it typically subsides quickly and doesn’t linger long indoors
GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens, Lawns, and Vegetables
- ORGANIC MATERIALS REVIEW INSTITUTE LISTED FOR TRUSTED GARDEN CARE Certified by OMRI for use in organic growing, GS Plant Foods Liquid Fish & Kelp Fertilizer delivers reliable, natural nutrition for vegetables, lawns, flowers, and shrubs.
- SEA-AND-SOIL BASED NUTRITION Made from North Atlantic seaweed (Ascophyllum nodosum) and fresh fish hydrolysate, this liquid concentrate provides essential nutrients and trace minerals that help support healthy soil and plant development.
- IMPROVES SOIL MICROBIOLOGY & NUTRIENT UPTAKE Supports a thriving soil ecosystem that promotes strong root systems and efficient nutrient absorption — the foundation for resilient, productive plants.
- EASY-TO-USE CONCENTRATE FOR ALL PLANTS Mix 2 oz per gallon of water and apply as a foliar spray or soil drench every 2–4 weeks. Safe for use on vegetables, fruits, ornamentals, turf, and houseplants.
- MADE IN THE USA – SUSTAINABLY PRODUCED Proudly produced by GS Plant Foods as a licensed fertilizer manufacturer. No synthetic chemicals, additives, or fillers — just natural ingredients formulated for healthy home gardens and hobby farms.
GS Plant Foods Organic Liquid Fish Fertilizer – Natures Growth Boost, OMRI-Certified, Hydrolyzed, Fish-Based, Organic Gardening Solution, 1 Quart
- OMRI ORGANIC LISTED HYDROLYZED FISH FERTILIZER: GS Plant Foods Organic Liquid Fish is an all-natural high quality fresh fish liquid fertilizer that gives excellent plant growth, rebuilds soil, and offers higher production yields. Our fish fertilizer will help stimulate growth and improve plant health and color. Tremendously beneficial for soil quality and improved rooting, this organic fish fertilizer can be applied to any type of soil or plant without concern for waste or harmful chemicals.
- PACKED WITH MACRO & MICRO NUTRIENTS: Our proprietary and all-natural fish fertilizer provides much more than N-P-K (Nitrogen, Phosphorus and Potassium) found in synthetic fertilizers. This fish plant fertilizer provides a comprehensive mix of macro & micro nutrients, minerals, peptides, proteins, and calcium, all in a usable form perfectly suited for maximum efficiency of uptake for your plants. The fish plant food fertilizer stimulates water penetration and increases nutrient assimilation.
- OPTIMAL PLANT GROWTH & HEALTH AT HOME OR COMMERCIALLY: Used in low concentrations, liquid fish fertilizer organic acts as an efficacious growth promoter. GS Plant Foods organic hydrolyzed fertilizer promotes growth of healthy bacteria. It is used extensively on a commercial basis, as well as at home as an organic soil conditioner. The end result is a powerfully effective, organic fertilizer and soil supplement that contains no chlorine or heavy metals. It is great for everything that grows!
- WORKS SYNERGISTICALLY WITH ALL FERTILIZERS:This liquid fish fertilizer is among the highest quality plant food products that you can get. It works synergistically with all fertilizers especially with a high quality liquid kelp fertilizer such as GS Plant Foods Organic Liquid Kelp. Use fish fertilizer on lawns, vegetables, fruits, trees & shrubs, seedlings and transplants as a regular healthful maintenance program to experience healthier plants with stronger, and more developed root systems.
- EASY TO APPLY FOR NATURAL GREAT RESULTS: Apply hydrolyzed fish fertilizer to improve specific growth stages. Apply generously to soil or as a foliar feed until leaves are wet, top and bottom. For lawns, one gallon of fertilizer mixed with 30-40 gallons of water will cover ¼ acre. Feed lawn every 4 weeks. Trees and shrubs use 4 oz per gallon of water. Feed by boring small holes 1 to 2 feet away from the root ball. Fill holes with solution. For best results, foliar feed early or late in the day.
Indian River Organics OMRI Listed Organic, Hydrolyzed Liquid Fish Fertilizer, 1 Quart / 36 ounces net wt.
- Far Superior to Emulsions: Our Proprietary Cold-Process Hydrolysis Preserves the Complex Nutrients that create Bigger Flower Blooms, Tastier Fruits & Vegetables, and Vibrant Green Lawns.
- 100% OMRI-LISTED Organic: Has the Organic Materials Review Institute (OMRI) seal (our competitors don’t)! Approved & suitable for use in certified organic operations under the USDA National Organic Program.
- Free of Contaminants: Our High-Quality Hydrolysate Fertilizer is Sustainably Produced from fresh, healthy, food-quality fish, free of chlorine, mercury, and other heavy metals. Family & pet friendly.
- EASY TO USE and Won’t Clog Equipment: Water Soluble; Just Mix with Water and Apply! We win new customers because our product works flawlessly with application equipment. Safely access your lawn after application. No waiting period.
- 100% Quality Guarantee: We’re incredibly proud of our product’s consistency, and we guarantee our nutrient analysis in every bottle. If you have concerns, let us know and we’ll be happy to work with you.
GS Plant Foods Liquid Fish Fertilizer – Organic Material Review Institute Listed (1 Gallon) – Natural Hydrolyzed Fish Fertilizer for Gardens, Lawns & Container Growing
- Organic Materials Review Institute Listed for Organic Production Approved as GS Plant Foods Organic Liquid Fish Concentrate 2-3-1. Suitable for organic growing under OMRI and NOP standards.
- Balanced Nutrient Formula (2-3-1) Provides primary nutrients from hydrolyzed fish for sustained plant nutrition and soil health.
- Versatile Garden Use: Ideal for vegetables, lawns, flowers, shrubs, trees, fruit, and container plants when used as directed.
- Simple Application: Mix 4 oz per gallon of water for most uses. Apply generously to soil or as a foliar feed until leaves are wet.
- Florida Licensed Manufacturer: Produced by GS Plant Foods, LLC (License F003717). 1 Gallon liquid fertilizer (8.9 lb).
Just Scentsational Bare Ground Solutions TP-128G Trident’s Pride Organic Liquid Fish Hydroponic Soil Fertilizer, 128 oz (1 Gallon)
- Omri-rated, all-natural, Organic fish fertilizer adds proteins and enzymes to soil
- Increases anti-oxidants, sugar, and earthworm population
- Increased microbe production reduces the need for pesticides and creates stronger growth
- Comes in liquid fertilizer or soil conditioning granules for easy application
- Suggested use is 4-6oz per gallon of water.
Organic Fish Emulsion with Kelp, one Gallon Size
- All natural plant food to help plants grow, flower, fruit and stay deep green.
- This liquid fertilizer is concentrated and must be diluted before use.
- Derived from: Whole fish and Kelp.
- One Gallon Size
Safergro Aqua Power Certified Organic Fish Emulsion Concentrate, 1 Quart
- OMRI certified organic liquid product
- Contains 20 amino acids, 13 vitamins and 8 minerals to promote health and growth
- 1 quart concentrate makes 6 to 10 gallons mix depending on application
- Feeds soil, plants and beneficial soil microbes
- To be used at any growth stage
Harris Organic Plant and Lawn Fertilizer, Hydrolyzed Liquid Fish Fertilizer Emulsion Great for Tomatoes and Vegetables, 3-3-0.3, 32oz (32oz (Quart))
- Uses trace minerals and micronutrients naturally derived from fish
- Promotes vigorous growth of plants and vegetables
- Great for all indoor and outdoor plants
- For use in an Organic Gardening program
- Won’t burn plants
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What key attributes should I check when choosing an organic liquid fish emulsion fertilizer?
Look for a clear NPK ratio, OMRI certification, and whether the formula includes additional ingredients like kelp for micronutrients. Cold‑pressed or hydrolyzed processing preserves amino acids, vitamins, and enzymes that boost plant health. Also consider the product’s concentration and recommended dilution rates to match your garden size.
How does the NPK ratio influence plant growth, and which ratio is most versatile?
A balanced 2‑3‑1 ratio supplies steady nitrogen for foliage, phosphorus for flowering, and potassium for root development, making it suitable for most vegetables and ornamentals. Products such as the 1‑gallon Organic Fish Emulsion (B09FZTPQJL) and GS Plant Foods (B00LUT5E74) use this ratio. Higher phosphorus blends, like the Down To Earth fish‑kelp concentrate (B07W81C9T8), can be better for bloom‑heavy crops.
Which fish emulsion offers the best value for a large garden or lawn?
The 1‑gallon Organic Fish Emulsion (B09FZTPQJL) provides a high volume at a competitive price and covers a wide range of applications, from soil drench to foliar spray. GS Plant Foods’ Liquid Fish & Kelp (B00BBLMXVQ) also delivers a gallon with OMRI certification and a strong reputation for soil health, making it a close second. Both give you enough product for multiple seasons, reducing per‑application cost.
Do these fertilizers have strong odors, and should that affect my purchase?
All genuine fish emulsions emit a fishy smell because they contain real hydrolyzed fish, which is a sign of quality. Products like the Down To Earth concentrate (B07W81C9T8) and the 1‑gallon Organic Fish Emulsion (B09FZTPQJL) note a noticeable odor that typically dissipates after application. If you plan to use the fertilizer indoors, choose a lower‑odor option or apply it outdoors and water in quickly.
Why is OMRI certification important when selecting a fish fertilizer?
OMRI certification guarantees the product meets USDA organic standards, allowing use in certified organic farms and gardens. Several items—GS Plant Foods (B00BBLMXVQ, B009CZH7UU, B00LUT5E74) and Indian River Organics (B01M5GV8HV)—carry this seal, ensuring no synthetic chemicals or prohibited additives. Choosing an OMRI‑listed product also reassures you of consistent ingredient sourcing and testing.
How do fish‑only emulsions compare to fish‑and‑kelp blends?
Fish‑only formulas, such as GS Plant Foods Organic Liquid Fish (B009CZH7UU), deliver high levels of nitrogen and amino acids for vigorous vegetative growth. Blends that include kelp, like Down To Earth (B07W81C9T8) and GS Plant Foods Fish & Kelp (B00BBLMXVQ), add trace minerals, hormones, and micronutrients that enhance flowering and stress tolerance. The choice depends on whether you prioritize leaf growth or want a broader spectrum of nutrients for bloom and fruit production.
What are the recommended dilution rates for different plant types and settings?
For general garden beds, mix ¼–½ cup of concentrate per gallon of water; for containers and houseplants, 2–4 tablespoons per gallon works well. Lawns typically need a stronger solution—about 4 oz of concentrate per gallon of water—to cover larger areas. Always follow the product label, and start with a weaker mix to avoid leaf burn, especially on seedlings.
Which product is best suited for indoor or container gardening?
The Safergro Aqua Power Certified Organic Fish Emulsion (B002SVLL6G) is a quart concentrate that makes 6–10 gallons of solution, ideal for small indoor spaces and containers. Its low‑odor formula and OMRI certification make it safe for indoor use. Indian River Organics (B01M5GV8HV) also works well indoors due to its clear labeling and easy water‑soluble nature.