Comparison: Best Atlas Fish Fertilizer (Updated | Dec 1st)
If your garden’s been craving a little extra love, you might want to pour a bottle of fish fertilizer on it—seriously. Atlas Fish Fertilizer has been making waves among gardeners, but with so many options out there, how do you know which one’s truly the best? We’ve dug into the details, tested the results, and compared the formulas so you don’t have to.
- Best for omri certified: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for vitamin rich: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for wintergreen deodorized: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for odorless cold: Neptune’s Harvest Fish Fertilizer 2-4-1
- Best for seaweed boosted: Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1 (36 Ounce)
- Best for salmon nutrients: Fish Emulsion Fertilizer
- Best for sustainable cold: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for root boost meal: Down To Earth All Natural Fertilizers Organic Fish Bone Meal – High Phosphorus Plant Food for Buds
- Best for compact seaweed: Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1
- Best for mini odorless: Neptune’s Harvest Fish Fertilizer 2-4-1
Product Comparison: Best Atlas Fish Fertilizer
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
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
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
Neptune’s Harvest Fish Fertilizer 2-4-1, 36 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
Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1 (36 Ounce)
- Grow a beautiful vegetable garden
- Flowers and foliage will be stronger and more colorful
- Blooms will be more plentiful, fragrant and longer lasting
- Easy to mix and apply by hand, sprayer, or drip line
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!
Down To Earth All Natural Fertilizers Organic Fish Bone Meal – High Phosphorus Plant Food for Buds, Bulbs, Blooms, Flower Beds 4-12-0, 5 lb
- Water-Soluble Formula – Easily dissolves in water for quick absorption and efficient nutrient delivery directly to the root zone
- Targets Root Development – Formulated to enhance root growth, improving plant stability, nutrient uptake, and drought resistance
- Fast-Acting Nutrients – Provides immediate access to essential nutrients like nitrogen, phosphorus, and potassium where roots need them most.
- Ideal for Transplants & Seedlings – Great for jumpstarting young plants or helping transplants establish quickly in new soil.
- Improves Soil-Root Interaction – Encourages a healthy rhizosphere, boosting microbial activity and root-zone nutrient cycling.
Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce
- Grow a beautiful vegetable garden
- Flowers and foliage will be stronger and more colorful
- Blooms will be more plentiful, fragrant and longer lasting
- Easy to mix and apply by hand, sprayer, or drip line
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 NPK ratio should I choose for my garden’s needs?
A balanced 2-3-1 or 2-4-1 ratio is ideal for blooming flowers and fruiting vegetables, while a higher nitrogen ratio like 5-1-1 promotes leafy growth for lawns and foliage plants. Consider the stage of plant development: use higher nitrogen early for vegetative growth and switch to more phosphorous for flowering. Matching the ratio to your garden’s primary goal helps maximize nutrient efficiency.
How important is an OMRI listing when selecting a fish fertilizer?
An OMRI listing confirms the product meets organic certification standards, which is crucial if you garden organically or sell produce as organic. It also assures that the fertilizer contains no prohibited synthetic additives. Choosing an OMRI‑listed option, such as the Alaska Fish Fertilizer, gives peace of mind for compliance and soil health.
Which fish fertilizer has the least odor for indoor or greenhouse use?
The Alaska Fish Emulsion Concentrate is deodorized with natural wintergreen, making it the most pleasant‑smelling choice for indoor environments. Neptune’s Harvest retains fish proteins but is formulated to be low‑odor, though it may still have a faint scent. For the quietest experience, look for products that specifically mention deodorization or low‑odor processing.
How do concentration and package size affect overall value?
Higher‑concentration formulas, like the 1‑gallon Alaska Fish Emulsion, provide more applications per purchase, lowering the cost per use. Smaller bottles, such as the 8‑oz complete fish emulsion, are convenient for trial runs but have a higher price‑per‑ounce. Compare the total nutrient content and recommended dilution rates to determine which size offers the best economic return.
Are seaweed blends better than pure fish emulsion for overall plant health?
Seaweed adds trace minerals, hormones, and kelp extracts that boost stress tolerance and root development, complementing the nitrogen from fish. Products like Neptune’s Harvest Fish & Seaweed Fertilizer combine both benefits, delivering a broader nutrient spectrum. If you want a single‑source formula with added micronutrients, a seaweed blend is a strong choice.
What benefits do added vitamins and microorganisms provide in fish fertilizers?
Vitamins such as B‑complex support enzymatic activity, while introduced microorganisms improve soil biology and nutrient cycling. Central Garden Brands emphasizes 11 vitamins and microbial stimulation, which can enhance root uptake and disease resistance. These extras often translate into faster, more vigorous growth compared to plain nitrogen sources.
Which fish fertilizer is best for vegetable gardens versus flower beds?
For vegetable gardens, a balanced 2‑3‑1 or 2‑4‑1 formula with seaweed, like Neptune’s Harvest Fish & Seaweed Fertilizer, promotes strong root systems and fruit development. Flower beds benefit from higher nitrogen options, such as the Alaska Fish Fertilizer 5‑1‑1, which encourages lush foliage and vibrant blooms. Match the NPK ratio and any added seaweed or bone meal to the plant type for optimal results.
How does cold‑processed fish fertilizer differ from regular emulsions?
Cold processing preserves heat‑sensitive nutrients, enzymes, and growth hormones that are often lost in standard emulsions, resulting in a richer nutrient profile. Neptune’s Harvest highlights this method, offering retained fish proteins and oils with minimal odor. The enhanced bioavailability can lead to more consistent plant performance, especially in demanding growing conditions.