---
product_id: 2620934
title: "Neptune's Harvest Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Quart)"
brand: "neptune's harvest"
price: "VT12654"
currency: VUV
in_stock: true
reviews_count: 13
category: "Neptune's Harvest"
url: https://www.desertcart.vu/products/2620934-neptunes-harvest-fish-fertilizer-2-4-1-organic-liquid-plant
store_origin: VU
region: Vanuatu
---

# Cold-processed North Atlantic fish 2-4-1 NPK ratio for balanced growth Rich in vitamins, amino acids & enzymes Neptune's Harvest Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Quart)

**Brand:** neptune's harvest
**Price:** VT12654
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock Ocean-Powered Growth — Your Plants’ Secret Weapon!

## Quick Answers

- **What is this?** Neptune's Harvest Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Quart) by neptune's harvest
- **How much does it cost?** VT12654 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/2620934-neptunes-harvest-fish-fertilizer-2-4-1-organic-liquid-plant)

## Best For

- neptune's harvest enthusiasts

## Why This Product

- Trusted neptune's harvest brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Soil Health Booster:** Feeds beneficial microbes, improves soil structure, moisture retention, and long-term fertility.
- • **Versatile Application:** One ounce per gallon works as soil drench or foliar feed—perfect for indoor & outdoor greenery.
- • **Pet & Kid Safe Formula:** Organic, OMRI listed, and naturally deters pests—grow with confidence and care.
- • **Complete Organic Nutrition:** Beyond NPK—micronutrients, omega oils, and trace elements fuel nutrient-dense, vibrant plants.
- • **Nature’s Nutrient Powerhouse:** Cold-process preserves vital growth hormones & enzymes for maximum plant vitality.

## Overview

Neptune’s Harvest Fish Fertilizer (2-4-1) is an organic liquid plant food made from cold-processed North Atlantic fish hydrolysate. It delivers a balanced NPK ratio enriched with vitamins, amino acids, enzymes, and omega oils to boost plant growth, improve soil health, and enhance nutrient density. Safe for indoor and outdoor use, this OMRI-listed fertilizer supports a wide range of plants while naturally deterring pests and promoting sustainable gardening.

## Description

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## Features

- Derived for Maximum Growth: Start with nutrition designed to work with nature; Neptune’s Harvest Organic Fish Fertilizer 2-4-1 is a liquid fish fertilizer and organic fish plant food made using a unique cold process that protects the vitamins, amino acids, enzymes, and growth hormones; sourced from clean, mineral rich North Atlantic Ocean fish and never lake, farmed, or river fish; this fertilizer supports lawns, vegetables, flowers, and indoor plants throughout the growing season and is safe for kids and pets
- Power of Fish Hydrolysate: Crafted from post-fillet ocean fish using 100% of the fish, this organic plant fertilizer delivers complete nutrition in nature’s perfect balance; containing far more than NPK, it supplies micronutrients, trace elements, vitamins, minerals, amino acids, enzymes, and omega oils, making this plant fertilizer beneficial for everything that grows while supporting better yield, improved quality, and nutrient-dense food without the offensive odor common in fish emulsions
- How to Use: Simple and efficient across growing spaces, this liquid plant food requires only one ounce per gallon of water and works as a soil drench or foliar feed; ideal as an indoor plant fertilizer and for outdoor gardens, trees, lawns, and vegetables, this liquid fish fertilizer acts as a natural sticker and spreader, helping nutrients adhere better to plant surfaces for effective absorption
- Supports Soil Performance: This organic soil amendments solution builds organic matter, feeds beneficial bacteria and microbes, and improves soil structure over time; soil becomes looser, retains moisture, drains better, and supports healthier roots; this organic fish fertilizer is OMRI Listed, helps raise Brix levels, sequesters carbon, and may deter deer naturally, helping plants become less susceptible to insects and disease while improving long-term soil quality
- Package Contents: Neptune's Harvest 2-4-1 Fish Fertilizer - 36oz Bottle (Pack of 1)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0012Q2TFA |
| Best Sellers Rank | #3,650 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #162 in Garden Fertilizers |
| Brand | Neptune's Harvest |
| Brand Name | Neptune's Harvest |
| Coverage | Medium |
| Customer Reviews | 4.7 out of 5 stars 2,963 Reviews |
| Global Trade Identification Number | 00081435036123 |
| Included Components | Neptune's Harvest Fish Fertilizer Quart |
| Item Form | Liquid |
| Item Type Name | Fish Fertilizer |
| Item Weight | 2.25 Pounds |
| Liquid Volume | 3784 Milliliters |
| Manufacturer | Neptune's Harvest |
| Mixing Ratio | 2-4-1 |
| Model Number | HF136 |
| Part Number | HF136 |
| Specific Uses For Product | Shade,Shade Protector |
| Target Species | Fish |
| UPC | 081435036123 190283017229 |
| Unit Count | 36.0 Ounce |

## Product Details

- **Brand:** Neptune's Harvest
- **Item Form:** Liquid
- **Item Weight:** 2.25 Pounds
- **Liquid Volume:** 3784 Milliliters
- **Specific Uses For Product:** Shade,Shade Protector

## Images

![Neptune's Harvest Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Quart) - Image 1](https://m.media-amazon.com/images/I/615yS3nXd0L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Do you know in what way this is different from neptune's harvest sw136 organic seaweed plant food?**
A: Seaweed is more of a micronutrient supplier with little fertilizer content, while the Neptunes Harvest fish fertilizer is mostly fertilizer, with quite a lot of micronutrients too. But not as much as in seaweed.

**Q: Whats the difference between buying this and buying the neptune's harvest organic hydrolized fish & seaweed fertilizer ?**
A: The npk rating is different . Just the fish has a npk of 2-4-1 where as the fish with seaweed has npk of 2-3-1 . I would think the one with seaweed would contain more mircronutrients . But both are great and made with hydrolized fish .

**Q: Best way to apply product?  Anyway to attach to a hose?**
A: For small areas use a watering can.  For larger areas dilute with about 1/4-12 water and spray with a hose end sprayer.

**Q: Would this product be too "rich", or even inappropriate for young, recently planted Red Maple trees ?**
A: I think this product is great, but with a young tree, I would use a much weaker solution than they suggest.  I am very pleased with the results, but remember, you don't want your young tree to grow too fast.  Just use 1/r-1/3 of the solution and see how it grows.  I have used this on japanese maples and it really improves the color of the leaves.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on July 21, 2025*



### ⭐⭐⭐⭐⭐ Review
*by M***O on January 6, 2025*



### ⭐⭐⭐⭐⭐ Review
*by D***J on March 26, 2026*



## Frequently Bought Together

- Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce
- Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz
- Neptune's Harvest Seaweed Fertilizer 0-0-1 (36 Ounce)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*