Comparison: Best Fish Emulsion For Orchids (Updated | Dec 1st)
If you’re serious about helping your orchids thrive, you’ve probably heard about fish emulsion as a natural powerhouse. In this guide, we’ll break down the best fish emulsions for orchids, comparing nutrient content, ease of use, and real results from growers like you. No fluff, just honest insights to help you choose the right feed for healthier, happier blooms.
- Best for salmon boost mini: Fish Emulsion Fertilizer
- Best for wintergreen burn-free: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for cold-pressed organic: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for deep green boost: Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Best for big green boost: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 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 gentle hydro boost: Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn
- Best for micronutrient rich: Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer
- Best for salmon boost quart: Fish Emulsion Fertilizer
- Best for trace mineral organic: Harris Organic Plant and Lawn Fertilizer
Product Comparison: Best Fish Emulsion For Orchids
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 (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.
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.
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
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
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
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
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 NPK ratio is best for orchid feeding and which products match it?
Orchids generally thrive on a balanced, low‑phosphorus formula such as 2-3-1 or 12-2-2, which promotes steady growth without encouraging excessive foliage. The 1‑gallon Organic Fish Emulsion (2‑3‑1) and the 3.3‑lb Powder (12‑2‑2) both meet these ratios. The other 5‑1‑1 emulsions are higher in nitrogen and may be too strong for delicate orchid roots.
How important is odor for indoor orchid growers and which options are least smelly?
A strong fishy smell can be unpleasant in indoor settings, especially near orchids on a windowsill. The Powder‑Up (12‑2‑2) and the Hydrolyzed Liquid Fish Fertilizer (2‑3‑2) are formulated to reduce odor, while the traditional liquid emulsions like the Alaska 5‑1‑1 concentrate retain a noticeable fish scent.
Should I choose a liquid or powder fish emulsion for my orchids?
Liquids are convenient for quick foliar sprays and easy mixing, but they can be over‑diluted and may cause runoff. Powders, such as the 12‑2‑2 formulation, are highly concentrated, store longer, and let you control dosage precisely, which is advantageous for the delicate feeding schedule orchids need.
Which product offers the best value per ounce for regular orchid feeding?
When comparing cost per ounce, the 32‑oz Complete Fish Emulsion (B0DQQPH29R) provides a larger volume at a lower price point than the 8‑oz bottle, while still delivering the same 5‑1‑1 nutrients. However, for orchid‑specific needs, the 1‑gallon 2‑3‑1 emulsion gives the most feed for the price, covering many applications with its low‑nitrogen formula.
Can I use the same fish emulsion for both orchids and other houseplants?
Yes, most fish emulsions are safe for a variety of indoor plants, but orchids benefit from lower nitrogen levels. Using a 5‑1‑1 product like Fertilome on foliage‑heavy plants is fine, but switch to a 2‑3‑1 or 12‑2‑2 formula for orchids to avoid excessive leaf growth at the expense of root health.
What are the key ingredients to look for in a high‑quality fish emulsion?
High‑quality emulsions list whole‑fish hydrolysate, natural amino acids, and trace minerals such as iron, manganese, and zinc. Products that mention cold‑pressed processing or 100 % fish protein, like the Organic Fish Emulsion (2‑3‑1) and the Powder (12‑2‑2), typically retain more nutrients and are less likely to contain fillers.
How often should I apply fish emulsion to orchids and does product concentration affect frequency?
Orchids usually need a light feed every 4‑6 weeks during active growth. Concentrated powders can be diluted to a very weak solution and applied less frequently, while liquid 5‑1‑1 emulsions may require more frequent, smaller applications to avoid nitrogen burn.
Is there a noticeable performance difference between US‑made and imported fish emulsions?
US‑made emulsions like the Complete Fish Emulsion (B0DQR1X69R) often emphasize consistent processing standards and transparent labeling, which can translate to reliable nutrient content. Imported options such as Alaska Fish Emulsion may offer unique additives like wintergreen deodorization, but the core fish protein quality is comparable across reputable brands.
