Comparison: Best Alaska Fish Fertilizer For Tomatoes (Updated | Dec 1st)

That’s where Alaska fish fertilizer comes in—rich, organic, and packed with natural goodness. But with so many options out there, which one truly delivers the best results? We’ve dug into the top contenders to help you choose the right formula for bigger blooms, stronger vines, and sweeter harvests. Let’s break down the best Alaska fish fertilizers for tomatoes—so you can grow with confidence and taste the difference.

Product Comparison: Best Alaska Fish Fertilizer For Tomatoes

OMRI Certified

Alaska Fish Fertilizer OMRI Listed 5-1-1, 115 oz

Alaska Fish Fertilizer OMRI Listed 5-1-1, 115 oz

Alaska
  • 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

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Wintergreen Fresh

Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)

Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)

Alaska
  • 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

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Vitamin-Rich Formula

CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer, 1 Quart

CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer, 1 Quart

Lilly Miller
  • Promotes healthy plant growth with 11 vitamins
  • Can be used on all indoor and outdoor plants
  • 100-percent organic
  • Stimulates microorganisms
  • Does not burn

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Dual Pack Value

Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)

Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)

Lilly Miller
  • 2 pack

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Odorless Protein

Neptune’s Harvest Fish Fertilizer 2-4-1, 36 Ounce

Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce

Neptune’s Harvest
  • 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

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US-Made Salmon

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)

TPS NUTRIENTS
  • Complete fish fertilizer for thriving plants
  • Helps growth with natural harvest salmon nutrients
  • Easy-to-follow care instructions included
  • Made in the USA

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Six-Pack Supply

Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)

Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)

Alaska
  • 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
  • Fish based fertilizer for use in vegetable and flower gardens OMRI listed Great for all indoor and outdoor plants.
  • Fish has been used as a natural source of plant nutrients for centuries.

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All-Purpose Gallon

Alaska Fish Emulsion Fertilizer All Purpose 5-1-1 1 gal

Alaska Fish Emulsion Fertilizer All Purpose 5-1-1 1 gal

uNlEaSh

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Tomato Boost

Neptune’s Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz

Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz

Neptune’s Harvest
  • Ideal For Vegetables, Trees, Shrubs And Flowers
  • Grow lots of big tomatos
  • Helps Plants Tolerate Drought

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Super Concentrated

Farmer’s Secret Tomato Booster Fertilizer (32oz) – Super Concentrated – 3:8:7 Ratio Fortified with Humic Acid, Iron and Calcium – Grow More Tomatoes

Farmer's Secret Tomato Booster Fertilizer (32oz) - Super Concentrated - 3:8:7 Ratio Fortified with Humic Acid, Iron and Calcium - Grow More Tomatoes

Farmer’s Secret
  • Let our professionally formulated plant food help you grow bigger, juicer and plumper tomatoes in your garden
  • Specifically formulated for optimal performance throughout the life cycle on all varieties of tomatoes
  • Super, super concentrated – A little goes a LONG way
  • Dilute two teaspoons of product into one gallon of water and apply weekly during the whole life cycle
  • Farmer’s Secret brings the same scientifically backed formula development process farmers get to YOUR garden… get in on the secret!
  • Bottled with pride in Kentucky!

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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

Buying Guide: Best Alaska Fish Fertilizer For Tomatoes

Nutrient Profile & Ratio

  • Choose a fertilizer with a 5-1-1 or 2-4-1 NPK ratio for balanced tomato growth
  • Higher nitrogen supports leaf development while moderate phosphorus promotes fruit set
  • Ensure the product supplies micronutrients like iron and magnesium for healthy plants

Application & Dilution

  • Select a concentrate that can be diluted to a low strength to avoid leaf burn
  • Follow label instructions for mixing ratios, typically 1‑2 teaspoons per gallon of water
  • Apply during early morning or late afternoon for optimal absorption

Organic Certification & Safety

  • Look for OMRI‑listed or other organic certifications to ensure garden‑friendly ingredients
  • Confirm the fertilizer is safe for edible crops and won’t leave harmful residues
  • Prefer products that are non‑burning and suitable for both indoor and outdoor use

Packaging & Size Options

  • Consider larger containers (gallon or multi‑pack) for long‑term garden use
  • Smaller bottles (1‑quart or 8‑oz) are convenient for trial runs or limited space
  • Check if the packaging includes clear storage instructions to maintain product potency

Special Features & Odor Control

  • Deodorized formulas with natural wintergreen or low‑odor processing are ideal for close‑quarter gardening
  • Formulations that retain fish proteins and oils provide extra vitamins and growth hormones
  • Products that stimulate soil microorganisms can improve overall soil health

FAQs

Which Alaska fish fertilizer is best for growing tomatoes?

For tomatoes, a 5-1-1 formulation like the Alaska Fish Fertilizer OMRI Listed 115 oz or the 1‑gallon concentrate provides a balanced nitrogen boost without excessive foliage growth. The OMRI‑listed version is certified for organic gardening, which many tomato growers prefer. If you want a larger supply, the 6‑pack 32 oz bottles give the same ratio at a lower per‑ounce cost.

How does the odor of fish emulsion affect indoor tomato cultivation?

Fish emulsion can have a strong smell, but products such as the Alaska Fish Emulsion with natural wintergreen deodorizer or Neptune’s Harvest, which retains proteins but eliminates odor, are better suited for indoor use. Choosing a deodorized option reduces the risk of unpleasant odors in a kitchen garden. Both still deliver the same nutrient profile for healthy tomato plants.

What should I consider when choosing between a concentrate and a ready‑to‑use fish fertilizer?

Concentrates like the 1‑gallon Alaska Fish Emulsion let you dilute to exact rates, saving money and allowing flexibility for different growth stages. Ready‑to‑use options, such as the 115 oz OMRI‑listed bottle, are convenient for quick applications but may be pricier per ounce. Decide based on how often you fertilize and whether you prefer mixing your own solutions.

Is the OMRI listing important for tomato growers?

Yes, an OMRI listing confirms the product meets organic certification standards, which is essential for growers who sell certified organic tomatoes. It also assures the fertilizer contains no prohibited synthetic chemicals. Both the Alaska 115 oz and the 6‑pack 32 oz versions carry this certification.

How do the nutrient ratios of Alaska fish fertilizers compare to other brands like Neptune’s Harvest?

Alaska fish fertilizers typically use a 5‑1‑1 N‑P‑K ratio, delivering higher nitrogen for vigorous leaf growth, while Neptune’s Harvest offers a 2‑4‑1 or 2‑4‑2 blend with more phosphorus and potassium, which can promote fruit set and size. For tomato plants that need strong vegetative growth early on, the 5‑1‑1 is advantageous, whereas the 2‑4‑2 may be better during fruiting stages.

Which product gives the best value for a large tomato garden?

The Alaska 6‑pack 32 oz (5‑1‑1) provides a high volume of fertilizer at a lower cost per ounce compared to single‑bottle options. When paired with a concentrate, you can stretch the product further by diluting as needed. This combination offers both affordability and flexibility for extensive tomato beds.

Can I use fish fertilizer on both indoor and outdoor tomato plants?

Absolutely; all listed Alaska fish fertilizers are formulated for indoor and outdoor use, making them versatile for container tomatoes on a windowsill or field‑grown vines. Just ensure proper dilution and ventilation when using indoors to manage any residual scent. Consistent application according to the product’s schedule will support healthy tomato yields in any setting.

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