Comparison: Best Making Fish Emulsion For Plants (Updated | Dec 1st)
If your garden’s craving a natural boost, fish emulsion might be the secret weapon you’ve been missing. But with so many DIY recipes and store-bought options out there, how do you know which one truly delivers? We’ve dug into the slimy details—fermented vs. Whether you’re a compost-bin pro or just starting out, we’ll help you make the smart, stink-minimized choice that your soil (and tomatoes) will thank you for.
- Best for vitamin-rich boost: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for deep green formula: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for omri certified blend: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for wintergreen deodorized: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for salmon nutrient power: Fish Emulsion Fertilizer
- Best for sustainably sourced liquid: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for versatile plant feed: Fish Emulsion 16OZ CONC
- Best for low-odor powder: Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water)
- Best for fish-kelp fusion: GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens
- Best for odorless protein boost: Neptune’s Harvest Fish Fertilizer 2-4-1
Product Comparison: Best Making Fish Emulsion For Plants
CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer, 1 Quart
- Promotes healthy plant growth with 11 vitamins
- Can be used on all indoor and outdoor plants
- 100-percent organic
- Stimulates microorganisms
- Does not burn
Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Develops deep green foliage, vigorous root systems and a solid plant structure
- Derived from fish soluble, can be used from indoor and outdoor. Can be used on plants and trees.
- Mixes with water and can be used by any convenient method of application. Shake well before use.
- 5-1-1 Fertilizer contains 5% Nitrogen, 1% Phosphate and 1% Soluble Potash.
- For plants mix 1-2 tbsp per 1 gal of water. For trees mix 4 tbsp per gal of water.
Alaska Fish Fertilizer OMRI Listed 5-1-1, 115 oz
- Fish-based fertilizer for use in vegetable, fruit, and flower gardens
- Excellent for use on flowers, trees, and other plants
- OMRI listed
- For organic gardening
- Great for all indoor and outdoor plants
- NPK 5-1-1 fish emulsion fertilizer
- Fish has been used as a natural source of plant nutrients for centuries
- Easy to use, just mix with water
Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Will Not Burn
- Great for all plants
- Deodorized with Natural Wintergreen
- 5-1-1 fertilizer is an excellent source of organic plant nutrients
- Fish Fertilizer
Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)
- Complete fish fertilizer for thriving plants
- Helps growth with natural harvest salmon nutrients
- Easy-to-follow care instructions included
- Made in the USA
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!
Fish Emulsion 16OZ CONC
- Total Nitrogen – 5% Available Phosphate – 1% Soluble Potash – 1%
- For use in Potted and house plants, fruits, vegetables, ornamentals and shade trees: african violets, ferns, tuberous begonias, camellias, azaleas, rhododendrons, acid-tolerant plants, fuchsias, chrysanthemums, orchids, vegetables, shrubs, berries, trees (fruit, shade, deciduous), roses, flowers (annual and perennial), and transplants * See label for complete list
Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water), for Vegetables, Trees, Lawns, Shrubs, Flowers, Fruits
- Organic Fish Protein :12-2-2 NPK powder made from 100% fish dried liquid powder, ground, and highly water-soluble when mixed.
- 2× Super Concentrated Powder: 1 lb (≈450 g) makes up to 100 gal of liquid feed,ideal for both large veggie plots and indoor/hydro gardens, creating high-value yield.
- Proven Results and Trusted Organic Fertilizer: Comparison experient conducted on same seed, same soil. The fertilizer supports visible growth and robust fruit set.
- Promotes Healthier Roots & Foliage: Rich in natural amino acids and micronutrients, boosts plant stress resistance, soil biology, and nutrient uptake.
- Reduced Odor, Easy to Use: Dry powder form alleviates the strong “fishy” smell of traditional emulsions. Simple to store, measure, and apply; mix and water every 1–2 weeks.
- Sustainable & Responsibly Sourced: Made in small batches from by products of the fish meal industry, organically biodegradable with minimal waste.
- Includes a teaspoon for ease of measurement
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.
Neptune’s Harvest Fish Fertilizer 2-4-1, 18 Ounce
- Neptune’s Harvest is an organic fertilizer made from fresh north Atlantic fish
- It is made by a unique cold process that protects the vitamins, amino acids, enzymes and growth hormones
- It also contains all the micro and macro nutrients naturally found in fish
- Unlike fish emulsions, Neptune’s Harvest retains the fish proteins and oils and has no unpleasant odor
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 factors should I look at when picking a fish emulsion fertilizer?
Check the NPK ratio, concentration (liquid, concentrate, or powder), and any certifications like OMRI for organic use. Also consider the packaging size, odor level, and whether the product includes added micronutrients or kelp. These details affect how often you’ll apply it and how well it matches your garden’s needs.
How do the NPK ratios vary across the products and why does that matter?
Most of the listed emulsions use a 5‑1‑1 ratio, which provides a balanced nitrogen boost for foliage while keeping phosphorus and potassium low for steady growth. The Alaska Fish Fertilizer Powder offers a higher 12‑2‑2 ratio, ideal for heavy‑feeding situations like vegetable beds. Choosing a ratio that matches your plant stage—higher nitrogen for leafy growth, lower for fruiting—helps avoid nutrient imbalances.
Which option gives the best value for covering a large garden area?
The 1‑gallon Alaska Fish Emulsion Concentrate (B002RH0B26) and the 1‑gallon Organic Fish Emulsion from the “1 Gallon Organic Fish Emulsion Fertilizer” listing both provide enough product for many gallons of watered‑down feed, making them cost‑effective for big plots. The powder form (B0F38LT29B) is also economical because one pound can make up to 100 gallons of solution, but it requires mixing. Compare price per usable gallon to decide which fits your budget.
Do any of these fertilizers have reduced odor, and how can I keep the smell down?
Alaska Fish Emulsion (B002RH0B26) is deodorized with natural wintergreen, and the powder version (B0F38LT29B) eliminates most of the fishy scent by being dry. Diluting the product according to the label and applying it in the early morning or evening can also lessen odor. If odor is a major concern, choose a deodorized or powder product and store it in a sealed container.
Why is an OMRI listing important for organic gardeners?
OMRI certification confirms that the fertilizer meets strict organic standards and can be used in certified organic production. Both the Alaska Fish Fertilizer (B0DQ2LNX35) and GS Plant Foods Liquid Fish & Kelp (B00BBLMXVQ) carry this listing, giving you confidence that no prohibited synthetic chemicals are present. Using OMRI‑listed products helps maintain organic certification for your garden or farm.
What are the pros and cons of liquid versus powder fish fertilizers?
Liquid emulsions, like the Central Garden Brands 1‑quart (B000BX4QGK) or the 1‑gallon Organic Fish Emulsion, are ready to dilute and apply quickly, making them convenient for regular feedings. Powder fertilizers, such as the 12‑2‑2 powder (B0F38LT29B), have a much longer shelf life, are easier to store, and generate far less odor, but they require mixing with water before use. Choose liquid for ease of use and powder for low‑odor, high‑concentration needs.
Which fish emulsion works best for indoor houseplants?
The Central Garden Brands 1‑quart (B000BX4QGK) and the Fertilome 5‑1‑1 (B000OWJM44) both state they are safe for indoor plants and are formulated to avoid burning, making them suitable for houseplants. Their smaller packaging sizes also reduce waste if you only need occasional feedings. Follow the recommended dilution of 1‑2 tablespoons per gallon of water for best results.
How should I dilute and apply these fertilizers for optimal plant health?
Generally mix 1‑2 tablespoons of 5‑1‑1 liquid emulsion per gallon of water for foliage plants, and increase to 4 tablespoons per gallon for trees, as suggested by Fertilome. For powder products, dissolve the recommended amount (often 1 lb per 100 gal) and stir well before watering. Apply as a soil drench every 2–4 weeks, and consider a light foliar spray for a quick nutrient boost during peak growth periods.