Comparison: Best Alaska Fish Fertilizer Morbloom (Updated | Dec 1st)
If you’re looking to give your garden a natural boost, you’ve probably heard of Alaska Fish Fertilizer and MorBloom. Both promise lush growth and vibrant blooms, but which one really delivers? We’ve dug into the ingredients, performance, and real-garden results to help you decide. Whether you’re feeding tomatoes, roses, or leafy greens, choosing the right fertilizer matters. Let’s break down the pros and cons of these two popular options—so you can skip the guesswork and grow with confidence.
- Best for high npk boost: Pennington Alaska Morbloom 0-10-10 Gallon
- Best for convenient dual pack: Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz
- Best for omri certified: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for vitamin-rich blend: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for wintergreen fresh: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for classic morbloom: ALASKA MORBLOOM FERT QT
- Best for value 2-pack: Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)
- Best for bulk garden pack: Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)
- Best for sustainably sourced: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
Product Comparison: Best Alaska Fish Fertilizer Morbloom
Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz, Pack of 2

- Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz, Pack of 2
- An extra flex groove offers a smooth toe-off.
- Heel-To-Toe Drop: 10 mm
- Not intended for use as Personal Protective Equipment (PPE)
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
Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)

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

- 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.
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!
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 are the key differences between Alaska Morbloom 0-10-10 and the 5-1-1 fish fertilizers?
Alaska Morbloom 0-10-10 is a high‑phosphorus, low‑nitrogen formula ideal for promoting blooms and root development, while 5-1-1 fertilizers provide a balanced blend of nitrogen, phosphorus, and potassium for overall foliage health. Morbloom is best for flowering plants and fruiting crops, whereas 5-1-1 works well on vegetables, trees, and indoor plants. Choose based on the growth stage and type of plant you are feeding.
How does the concentration and packaging size affect value for money?
Larger containers, like the 1‑gallon Gallon Morbloom or 1‑gallon 5‑1‑1 concentrate, usually offer a lower cost per ounce compared with 32‑oz or quart sizes. However, if you have a small garden or limited storage, the smaller packs may be more convenient despite a higher unit price. Evaluate your garden’s size and how often you plan to fertilize to decide which size gives the best value.
Is the odor of fish fertilizer a concern, and which products minimize it?
All genuine fish emulsion will have a fishy smell, but some formulations are deodorized with natural wintergreen or other scents to reduce the impact. The Alaska Fish Emulsion 5‑1‑1 (1‑gallon) advertises a wintergreen deodorization, while the 1‑gallon organic fish emulsion from another brand notes a strong fish odor as a sign of authenticity. If odor is a major concern, opt for the deodorized version or use the fertilizer in a well‑ventilated area.
Are these fertilizers certified for organic gardening?
Yes, several of the listed products are OMRI‑listed, including the Alaska Fish Fertilizer 5‑1‑1 (115 oz) and the 32‑oz 6‑pack version, confirming they meet organic standards. The Central Garden Brands Fish Emulsion and the 1‑gallon organic fish emulsion also claim 100 % organic status. Look for the OMRI label on the packaging if you need guaranteed organic compliance.
What should I consider when choosing between a concentrate and a ready‑to‑use liquid?
Concentrates, such as the 5‑1‑1 gallon or 0‑10‑10 gallon, require dilution before application, giving you flexibility to adjust strength for different plant needs. Ready‑to‑use liquids, like the 1‑quart packs, are convenient for quick applications but may be more expensive per use. If you prefer precise control and larger gardens, a concentrate is usually more economical.
How do the nutrient ratios impact specific plant types?
A 0‑10‑10 ratio supplies high phosphorus, encouraging strong root systems and abundant blooms, making it ideal for flowering shrubs and fruiting vines. A 5‑1‑1 ratio offers moderate nitrogen for leafy growth while still providing enough phosphorus and potassium for overall vigor, suitable for vegetables, herbs, and indoor foliage. Match the NPK ratio to the growth phase—higher nitrogen for vegetative growth, higher phosphorus for flowering.
Do any of these products include additional micronutrients or vitamins?
The Central Garden Brands Fish Emulsion highlights 11 vitamins that support plant metabolism, while other Alaska products focus primarily on macro‑nutrients (NPK). Some formulations also claim to stimulate beneficial soil microorganisms, which can improve nutrient uptake. If you want extra micronutrient support, choose a product that lists vitamin or micro‑element content on the label.
What are the best practices for storing fish fertilizer to maintain its effectiveness?
Store fish fertilizers in a cool, dry place away from direct sunlight to prevent nutrient degradation and odor buildup. Keep the containers tightly sealed to avoid moisture ingress, which can cause clumping or spoilage. For large gallons, consider using a secondary airtight container if you won’t use the product within a few months.


