Comparison: Best Tractor Supply Fish Emulsion (Updated | Dec 1st)
If you’re looking to give your garden a natural boost, you’ve probably heard about fish emulsion—and at Tractor Supply, the options can feel overwhelming. We’ve dug into the details so you don’t have to. Whether you’re growing veggies, flowers, or fruit trees, the right fish emulsion can make all the difference. Let’s break down which one truly earns its spot in your gardening routine.
- Best for organic plant boost: Harris Organic Plant and Lawn Fertilizer
- Best for kid-friendly vitamin: EMULSION DE ESCOCIA Cod Liver Oil
- Best for cherry omega boost: Emulsion de Escocia Cod Liver Oil
Product Comparison: Best Tractor Supply Fish Emulsion
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
EMULSION DE ESCOCIA Cod Liver Oil, Orange Flavor, 6.5 fl oz (1 Pack) – Fish Oil with Vitamins A, D, E, B1, Omega-3 for Immune and Bone Health, Kids & Adults

- [NUTRIENT-RICH FORMULA] Emulsión de Escocia Cod Liver Oil Liquid provides essential Vitamins A, D, E & B1, promoting immune support and bone health for kids and adults.
- [SUPPORTS STRONG BONES] With high levels of Vitamin D, this fish oil liquid helps the body absorb calcium effectively, aiding in the development and maintenance of strong bones.
- [BRAIN HEALTH BOOSTER] The Omega-3 fatty acids in our cod liver oil are crucial for maintaining overall health, particularly benefiting brain development and function in children.
- [FAMILY-FRIENDLY SUPPLEMENT] Ideal for the whole family, our formula supports natural body resistance and bone strength, especially in growing children and adults with a diet lacking in natural iron and vitamins.
- [DELICIOUS FLAVOR] Enjoy the tasty Orange flavor, making it easier for children and adults to incorporate this beneficial supplement into their daily routine.
Emulsion de Escocia Cod Liver Oil, Cherry Flavor, 6.5 fl oz (1 Pack) – Fish Oil with Vitamins A, D, E, B1, Omega-3 for Immune and Bone Health, Kids & Adults

- [NUTRIENT-RICH FORMULA] Emulsión de Escocia Cod Liver Oil Liquid provides essential Vitamins A, D, E & B1, promoting immune support and bone health for kids and adults.
- [SUPPORTS STRONG BONES] With high levels of Vitamin D, this fish oil liquid helps the body absorb calcium effectively, aiding in the development and maintenance of strong bones.
- [BRAIN HEALTH BOOSTER] The Omega-3 fatty acids in our cod liver oil are crucial for maintaining overall health, particularly benefiting brain development and function in children.
- [DELICIOUS FLAVOR] Enjoy the tasty Cherry flavor, making it easier for children and adults to incorporate this beneficial supplement into their daily routine.
- [FAMILY-FRIENDLY SUPPLEMENT] Ideal for the whole family, our formula supports natural body resistance and bone strength, especially in growing children and adults with a diet lacking in natural iron and vitamins.
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 a plant‑based fish emulsion fertilizer and cod‑liver‑oil supplements?
Fish emulsion fertilizer, like Harris Organic, is formulated to deliver trace minerals and micronutrients to plants, promoting vigorous growth without burning foliage. Cod‑liver‑oil supplements, such as Emulsion de Escocia, are designed for human consumption, providing vitamins A, D, E, B1 and omega‑3 fatty acids for immune, bone, and brain health. The former is applied to soil or foliage, while the latter is taken orally as a liquid supplement.
How should I choose the right fish emulsion product for my garden?
Look for an organic label, low nitrogen concentration, and a formulation that won’t scorch delicate plants; Harris Organic Plant and Lawn Fertilizer meets these criteria. Verify that the product is suitable for both indoor and outdoor use and that it includes a balanced mix of micronutrients. Also consider the packaging size and price per ounce to gauge overall value.
Is the orange‑flavored cod liver oil any different from the cherry‑flavored version?
Both flavors contain the same nutrient‑rich formula with vitamins A, D, E, B1 and omega‑3s, so the health benefits are identical. The primary distinction is taste preference; the orange flavor may be more appealing to children, while the cherry flavor offers an alternative for those who prefer a different fruit taste. Choose the flavor that your family will find easiest to consume consistently.
Can I use fish emulsion fertilizer on edible crops without risking contamination?
Yes, high‑quality organic fish emulsions like Harris are approved for use on vegetables and fruits because they are derived from natural fish processing by‑products and contain no synthetic chemicals. Follow the label’s recommended dilution rates to avoid over‑application, which could lead to excess nitrogen residues. Always wash produce before consumption as a best practice.
What value does Harris Organic Fish Fertilizer provide compared to generic liquid fertilizers?
Harris combines trace minerals and micronutrients naturally sourced from fish, which many generic fertilizers lack, supporting stronger root systems and overall plant vigor. Its organic certification assures no harsh chemicals, reducing the risk of plant burn and environmental impact. While the price may be slightly higher, the broader nutrient profile and safety for edible plants often justify the extra cost.
How often should I apply fish emulsion versus cod liver oil supplements?
For plants, fish emulsion is typically applied every 2–4 weeks during the growing season, depending on soil tests and plant needs. Cod‑liver‑oil supplements are usually taken daily, with dosage instructions based on age and health guidelines. Consistency is key for both, but the frequency differs greatly because one nourishes plants and the other supports human health.
Are there any safety considerations when storing these fish‑based products?
Store fish emulsion fertilizer in a cool, dry place away from direct sunlight to maintain its nutrient potency and prevent mold growth. Cod‑liver‑oil liquids should also be kept refrigerated after opening to preserve freshness and prevent oxidation of omega‑3 fats. Always keep the containers tightly sealed and out of reach of children and pets.
