Comparison: Best Fish Emulsion For Tomatoes (Updated | Dec 1st)
When it comes to growing plump, juicy tomatoes, not all fertilizers are created equal—and fish emulsion has long been a gardener’s secret weapon. But with so many options on the shelf, how do you know which one truly delivers? Spoiler: the right one can mean the difference between a so-so harvest and the most flavorful, abundant tomatoes you’ve ever grown. Let’s break it down.
- Best for salmon nutrient blend: Fish Emulsion Fertilizer
- Best for burn-free blend: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for yield-boost formula: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for deep green growth: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for compact green power: Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Best for odorless powder power: Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water)
- Best for trace mineral boost: Harris Organic Plant and Lawn Fertilizer
- Best for salmon supreme: Fish Emulsion Fertilizer
- Best for organic rose care: Heirloom Roses Founder’s Fish Fertilizer – Plant Food for Plants
Product Comparison: Best Fish Emulsion For Tomatoes
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
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
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!
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.
Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 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.
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
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
Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 32 oz (1 Quart)
- Complete fish fertilizer for thriving plants
- Helps growth with natural harvest salmon nutrients
- Easy-to-follow care instructions included
- Made in the USA
Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer, 1-Gallon
- All purpose liquid fish fertilizer: Use on flowers, lawns, shrubs, trees, and other outdoor plants
- Primary nutrients source: Derived from seagoing fish
- Active ingredients: Includes iron, manganese, and zinc
- Fish emulsion 5-1-1: Suitable for soil or foliar application
- Safe and nonburning: Ideal for use on vegetables, flowers, shrubs, lawns, and trees
- Versatile application: Can be used on potted and house plants, fruits, vegetables, ornamentals, and shade trees
- Application rate: Recommended usage is 2 tablespoons per gallon monthly during the growing and blooming season
- Product type: Liquid fertilizer
- Package size: Available in a 1-gallon container
- Manufacturer: Liquinox
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
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 NPK ratio is best for feeding tomato plants with fish emulsion?
Tomatoes thrive on a balanced nitrogen to phosphorus to potassium ratio around 2-1-2 to 3-1-2, which supports strong foliage and fruit development. The 1‑gallon organic fish emulsion (2‑3‑1) is slightly higher in nitrogen, ideal for early growth, while the 12‑2‑2 powder offers a higher potassium boost for fruiting stages. Choose the product that matches the growth phase of your tomatoes.
How does a liquid fish emulsion compare to a powdered version in terms of odor and storage?
Liquid emulsions, such as the 5‑1‑1 concentrates, retain a strong fishy smell, which some gardeners find unpleasant but indicates a true fish source. Powdered options like the 12‑2‑2 fish protein powder are dry‑processed to reduce odor and are easier to store without risk of spillage. If odor is a concern or you need long‑term storage, the powder may be more convenient.
Which product gives the best value per ounce for a home garden?
When evaluating cost‑per‑ounce, larger containers like the 1‑gallon Alaska Fish Emulsion (5‑1‑1) and the 1‑gallon Organic Fish Emulsion (2‑3‑1) typically provide the lowest price per ounce. The 12‑2‑2 powder, while more concentrated, can stretch to 100 gallons of liquid feed per pound, offering excellent value for extensive plots. Compare the listed prices and factor in how much you’ll actually use for your tomato garden.
Can I use fish emulsion on both indoor and outdoor tomato plants?
Yes, most fish emulsions are versatile; products labeled as “derived from fish soluble” or “all‑purpose liquid fish fertilizer” work for indoor containers and outdoor beds. The 5‑1‑1 formulas are gentle enough not to burn foliage, making them safe for indoor tomato seedlings. Just follow the recommended dilution rates and ensure adequate light and airflow indoors.
What are the key features to look for when choosing a fish emulsion for tomatoes?
Focus on the NPK ratio, concentration (liquid vs. powder), organic certification, and any added micronutrients like iron or zinc that aid tomato health. Products that advertise “no burn” and include clear mixing instructions reduce the risk of over‑fertilizing. Also consider odor control, such as deodorized wintergreen blends, if you’ll be using it near living spaces.
How do application rates differ between the 5‑1‑1 liquid concentrates and the 12‑2‑2 powder?
The 5‑1‑1 liquids typically recommend 1‑2 tablespoons per gallon of water for vegetable crops, while the 12‑2‑2 powder suggests mixing 1 lb to make up to 100 gallons of feed, roughly 0.16 oz per gallon. This means the powder is far more concentrated, requiring careful measurement but fewer mixing steps. Adjust rates based on plant age; seedlings need less nitrogen than mature fruiting plants.
Is there a noticeable performance difference between salmon‑based and generic fish emulsions?
Salmon‑derived emulsions often contain higher levels of omega‑3 fatty acids and amino acids, which can enhance root development and stress resistance. Generic fish emulsions still provide essential nitrogen and micronutrients but may vary in nutrient density. For high‑yield tomato production, a salmon‑based product like the 8 oz Complete Fish Emulsion may give a slight edge in vigor.
What safety considerations should I keep in mind when handling fish emulsion fertilizers?
Wear gloves and eye protection when mixing concentrated formulas to avoid skin irritation from the acidic nature of fish extracts. Always dilute according to the label before applying to prevent leaf burn, especially on young tomato plants. Store the product in a cool, dry place away from direct sunlight to maintain nutrient stability.