Comparison: Best Fish Emulsion In Garden (Updated | Dec 1st)
If you’re looking to give your garden a natural boost, fish emulsion might just be your secret weapon. But with so many options on the shelf, how do you know which one delivers the best results? We’ve dug into the top contenders—comparing nutrient content, smell, ease of use, and real garden performance—so you don’t have to guess. Whether you’re growing tomatoes, leafy greens, or vibrant flowers, the right fish emulsion can make all the difference. Let’s find the best fit for your thriving, healthy garden.
Ounce Of Hope OMRI Listed Organic Concentrated Fish Poop – Liquid Fertilizer for Vegetable Gardens
Odorless Super‑Concentrate
- Best for vitamin‑rich boost: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for odorless growth: Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn
- Best for omri‑certified balance: GS Plant Foods Liquid Fish Fertilizer – Organic Material Review Institute Listed (1 Gallon) – Natural Hydrolyzed Fish Fertilizer for Gardens
- Best for kelp‑boosted bloom: 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 rose‑friendly formula: Heirloom Roses Founder’s Fish Fertilizer – Plant Food for Plants
- Best for seaweed‑infused all‑purpose: Fish & Seaweed Fertilizer (2-3-1) | All Purpose Liquid Plant Food for Indoor Plants & Outdoor Garden
- Best for trace‑mineral boost: Harris Organic Plant and Lawn Fertilizer
- Best for rose‑wide use: Heirloom Roses Founder’s Fish Fertilizer – All Natural Plant Food for Plants
- Best for odorless super‑concentrate: Ounce Of Hope OMRI Listed Organic Concentrated Fish Poop – Liquid Fertilizer for Vegetable Gardens
- Best for premium organic concentrate: Ounce Of Hope OMRI Listed Organic Concentrated Fish Poop – Liquid Fertilizer for Vegetable Gardens
Product Comparison: Best Fish Emulsion In Garden
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
Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn, Flowers, Fruits & Vegetables in Garden or Farm (16 fl oz)
- Rich in amino acids and nutrients
- Natural and eco-friendly
- Boosts plant growth and vitality
- Works both as soil drench & foliar spray
- helps add organic matter to soil
- Will not burn plants, no bad odor
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).
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
Heirloom Roses Founder’s Fish Fertilizer – Plant Food for Plants, Organic Liquid Emulsion Fertilizer, Garden Fertilizers for Rose Flower and Tomato Outdoor Gardening
- All Natural
- Easy Application
- Won’t Burn Plants
- Long Lasting
- Promotes Robust Plant Health
Fish & Seaweed Fertilizer (2-3-1) | All Purpose Liquid Plant Food for Indoor Plants & Outdoor Garden, Vegetables & Flowers | All-Natural Fish & Seaweed Formula Potted Plants & Garden Flowers (8 oz)
- ALL-PURPOSE PLANT FOOD FOR GARDEN & HOME: One versatile solution! Ideal liquid fertilizer for vegetables promoting yield, powerful flower fertilizer for vibrant blooms, effective indoor plants fertilizer, and general garden fertilizer for trees, shrubs, and containers.
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
Heirloom Roses Founder’s Fish Fertilizer – All Natural Plant Food for Plants, Natural Liquid Emulsion Fertilizer, One Gallon Garden Fertilizers for Rose Flower and Tomato Outdoor Gardening
- Great For All Plant Types
- All Natural
- Easy Application
- Won’t Burn plants
- Plant Fertilizer
Ounce Of Hope OMRI Listed Organic Concentrated Fish Poop – Liquid Fertilizer for Vegetable Gardens, Indoor Plant Food for Houseplants, Hydroponic Nutrients, Soil Amendment (16 Ounces)
- CERTIFIED ORGANIC FISH POOP: Made from pure, unadulterated koi and tilapia fish manure. Concentrated liquid fertilizer feeds while restoring soil with beneficial microbial, fungal, and protozoan life that stabilize soil structure and increase nutrient uptake. All-Natural, Odorless (ammonia free), Non-Toxic.
- ALL PURPOSE LIQUID PLANT FOOD for use outdoor & indoor. 2-1-4 NPK ratio provides an excellent foundation for vegetables, flowers, herbs, fruit trees, lawns, outdoor plants, and aquatic plants. Weekly 3rd party analysis verifies the presence of valuable micronutrients such as Zn, Cu, Mn, Fe, B, S, Na, Mg, Ca, Mo.
- INCREASES YIELD & FLAVOR: Fish Poop improves every stage of growth, from seed to flush. Nutrient bioavailability results in higher concentrations of terpenes, terpinoids, aromatic volatiles, essential oils and flavonoids; resulting in tastier tomatoes, more fragrant flowers, hoppier hops, and (of course) happier hemp.
- COLLECTED FROM AQUAPONIC HEMP FARM in Memphis, TN The fish we care for are fed premium quality, organic aquaponic food made to our specs. Our system is far more sustainable than all other manure production processes. Ounce of Hope produces a significant quantity of consumer and certified medicinal products and extracts. Open to inquiries.
- HIGHLY CONCENTRATED: Per gallon mix: General feed & soil conditioner 1-2 oz, Veg 6-10 oz, Flower 8-12 oz. 2x quantity if sole nutrient source. Suitable for agriculture & horticulture pursuits of any scale; soil, soilless, aquaponics & hydroponics. Filter/screen before small emitters used to fertigate. Not recommended combined with synthetic (salt-based) nutrients. Amazing for solo use during flush. Great in conjunction with / in the same manner as worm tea fertilizer or worm casting tea. Commercial quantities available.
Ounce Of Hope OMRI Listed Organic Concentrated Fish Poop – Liquid Fertilizer for Vegetable Gardens, Indoor Plant Food for Houseplants, Hydroponic Nutrients, Soil Amendment (4 Ounces)
- CERTIFIED ORGANIC FISH POOP: Made from pure, unadulterated koi and tilapia fish manure. Concentrated liquid fertilizer feeds while restoring soil with beneficial microbial, fungal, and protozoan life that stabilize soil structure and increase nutrient uptake. All-Natural, Odorless (ammonia free), Non-Toxic.
- ALL PURPOSE LIQUID PLANT FOOD for use outdoor & indoor. 2-1-4 NPK ratio provides an excellent foundation for vegetables, flowers, herbs, fruit trees, lawns, outdoor plants, and aquatic plants. Weekly 3rd party analysis verifies the presence of valuable micronutrients such as Zn, Cu, Mn, Fe, B, S, Na, Mg, Ca, Mo.
- INCREASES YIELD & FLAVOR: Fish Poop improves every stage of growth, from seed to flush. Nutrient bioavailability results in higher concentrations of terpenes, terpinoids, aromatic volatiles, essential oils and flavonoids; resulting in tastier tomatoes, more fragrant flowers, hoppier hops, and (of course) happier hemp.
- COLLECTED FROM AQUAPONIC HEMP FARM in Memphis, TN The fish we care for are fed premium quality, organic aquaponic food made to our specs. Our system is far more sustainable than all other manure production processes. Ounce of Hope produces a significant quantity of consumer and certified medicinal products and extracts. Open to inquiries.
- HIGHLY CONCENTRATED: Per gallon mix: General feed & soil conditioner 1-2 oz, Veg 6-10 oz, Flower 8-12 oz. 2x quantity if sole nutrient source. Suitable for agriculture & horticulture pursuits of any scale; soil, soilless, aquaponics & hydroponics. Filter/screen before small emitters used to fertigate. Not recommended combined with synthetic (salt-based) nutrients. Amazing for solo use during flush. Great in conjunction with / in the same manner as worm tea fertilizer or worm casting tea. Commercial quantities available.
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 consider when choosing a liquid fish emulsion for my garden?
Look for the NPK ratio that matches your plant’s growth stage, organic certifications like OMRI, and the concentration level that fits your application method. Also compare odor levels, as some formulas are odorless while others have a strong fish scent, and check if the product is safe for indoor use.
How do the NPK ratios differ among the listed fish emulsions, and why does it matter?
Products range from 2-1-4 (Ounce Of Hope) to 2-3-2 (Fish Hydrolysate) and 2-3-1 (GS Plant Foods), each emphasizing different nutrient balances. Higher phosphorus ratios boost flowering, while higher nitrogen supports foliage; choose the ratio that aligns with whether you need vegetative growth or fruit/flower production.
Is an OMRI‑listed fish fertilizer worth the extra cost?
OMRI‑listed formulas, such as GS Plant Foods and Ounce Of Hope, guarantee compliance with organic standards, which is valuable for certified organic gardens. The premium price also often reflects higher purity, consistent nutrient analysis, and added micronutrients that can improve overall plant health.
Which fish emulsion is best for indoor houseplants?
For indoor use, choose a low‑odor, non‑burning option like Central Garden Brands or Heirloom Roses Founder’s Fish Fertilizer, both marketed as gentle and safe for houseplants. These products typically recommend modest dilution rates, reducing the risk of leaf scorch in confined spaces.
How do application methods (soil drench vs. foliar spray) affect performance?
Soil drenches deliver nutrients directly to the root zone, promoting steady growth, while foliar sprays provide rapid uptake for quick boosts during stress periods. Many emulsions, such as Fish Hydrolysate and Down To Earth, are formulated for both methods, giving you flexibility based on plant needs.
What should I know about concentration and mixing ratios?
Concentrated products like Ounce Of Hope require precise dilution—often 1‑2 oz per gallon for general feeding—whereas ready‑to‑use formulas like Central Garden Brands are pre‑diluted for easy application. Always follow the manufacturer’s guidelines to avoid over‑fertilizing, which can lead to leaf burn or nutrient lockout.
Do fish emulsions provide any soil health benefits beyond nutrients?
Yes, fish emulsions contain amino acids and organic matter that stimulate beneficial microbial activity, improving soil structure and nutrient availability. Products highlighting microbial stimulation, such as Central Garden Brands and Harris Organic, can help build a more resilient garden ecosystem over time.
How does price per ounce compare across these products, and does higher price mean better value?
While larger containers like GS Plant Foods (1 gallon) often lower the cost per ounce, premium blends with added kelp or certified organic status may command higher prices. Evaluate value by considering nutrient density, certification, and additional benefits like odor control rather than price alone.