---
product_id: 256574721
title: "Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce"
brand: "neptune's harvest"
price: "€ 133.88"
currency: EUR
in_stock: false
reviews_count: 5
category: "Neptune's Harvest"
url: https://www.desertcart.hr/products/256574721-neptunes-harvest-fish-fertilizer-2-4-1-36-ounce
store_origin: HR
region: Croatia
---

# Balanced 2-4-1 NPK for optimal growth 100% organic North Atlantic fish base Cold-processed to preserve nutrients Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce

**Brand:** neptune's harvest
**Price:** € 133.88
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Feed your plants like a pro with Neptune’s ocean-powered boost!

## Quick Answers

- **What is this?** Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce by neptune's harvest
- **How much does it cost?** € 133.88 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/256574721-neptunes-harvest-fish-fertilizer-2-4-1-36-ounce)

## 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

- • **Pure Ocean Power:** Harness the nutrient-rich bounty of fresh North Atlantic fish for thriving plants.
- • **Odor-Free Formula:** Retains fish proteins and oils without the typical fishy smell—garden-friendly and discreet.
- • **Proven Performance:** University-backed results show superior growth compared to chemical fertilizers.
- • **Cold-Process Preservation:** Unique cold processing locks in vital vitamins, amino acids, and growth hormones.
- • **Complete Nutrient Spectrum:** Packed with micro and macro nutrients naturally chelated for instant plant absorption.

## Overview

Neptune's Harvest Fish Fertilizer 2-4-1 is a 36-ounce organic plant fertilizer made from fresh North Atlantic fish using a unique cold process that preserves essential nutrients and growth hormones. It delivers a balanced nitrogen-phosphorus-potassium ratio with chelated nutrients for rapid plant uptake, all without the unpleasant odor typical of fish emulsions. Trusted by gardeners and supported by university studies, it outperforms many chemical fertilizers to revive and nourish a wide variety of plants.

## Description

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. The nitrogen and other nutrients are chelated, so they are readily available for plants consumption. Unlike fish emulsions, Neptune's Harvest retains the fish proteins and oils and has no unpleasant odor. University studies have shown Neptune's Harvest to outperform chemical fertilizers.

Review: The delivery was speedy, and the product works as directed.
Review: i've been using neptune fish fertilizers for awhile, when my plants look a little limp and maybe overwatered, these help revive plants. I use them on my avocado trees, my blueberry plants and other vegetables and they all do well when i feed them a twice sometimes more a year watering with this concentrated fertilizer. Yes it smells, but it works. It's interesting that a broken down animal like fish can fertilize a plant, like it feeds on the protein, so not sure how it works, but just found it interesting and great that it works so well.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0012Q2TFA |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,201) |
| Date First Available | 7 August 2012 |
| Ingredients | Nitrogen, Phosphorus, Potash |
| Item display weight | 2.6 Pounds |
| Item display width | 3.5 inches |
| Item model number | HF136 |
| Manufacturer | BFG Supply |
| Part number | HF136 |
| Product Dimensions | 8.89 x 8.89 x 22.23 cm; 1.02 kg |

## Product Details

- **Brand:** Neptune's Harvest
- **Item form:** Liquid
- **Item weight:** 2.25 Pounds
- **Liquid volume:** 946 Milliliters
- **Specific uses for product:** Plant Growth

## Images

![Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce - Image 1](https://m.media-amazon.com/images/I/615yS3nXd0L.jpg)
![Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce - Image 2](https://m.media-amazon.com/images/I/81InGBrFcwL.jpg)
![Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce - Image 3](https://m.media-amazon.com/images/I/717Uau8vwKL.jpg)
![Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce - Image 4](https://m.media-amazon.com/images/I/71uGpvXTr0L.jpg)
![Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce - Image 5](https://m.media-amazon.com/images/I/81c-JfnWJ+L.jpg)

## 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 J***A on 10 June 2025*

The delivery was speedy, and the product works as directed.

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

i've been using neptune fish fertilizers for awhile, when my plants look a little limp and maybe overwatered, these help revive plants. I use them on my avocado trees, my blueberry plants and other vegetables and they all do well when i feed them a twice sometimes more a year watering with this concentrated fertilizer. Yes it smells, but it works. It's interesting that a broken down animal like fish can fertilize a plant, like it feeds on the protein, so not sure how it works, but just found it interesting and great that it works so well.

### ⭐⭐⭐⭐⭐ Review
*by U***C on 20 February 2026*

Great for vegetable and flower garden. Quality is pretty good.

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/256574721-neptunes-harvest-fish-fertilizer-2-4-1-36-ounce](https://www.desertcart.hr/products/256574721-neptunes-harvest-fish-fertilizer-2-4-1-36-ounce)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-20*