---
product_id: 256574721
title: "Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce"
brand: "neptune's harvest"
price: "R$674"
currency: BRL
in_stock: true
reviews_count: 5
category: "Neptune's Harvest"
url: https://www.desertcart.com.br/products/256574721-neptunes-harvest-fish-fertilizer-2-4-1-36-ounce
store_origin: BR
region: Brazil
---

# Odor-free fish proteins & oils 2-4-1 N-P-K ratio for balanced growth Cold-processed to preserve nutrients Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce

**Brand:** neptune's harvest
**Price:** R$674
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce by neptune's harvest
- **How much does it cost?** R$674 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/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

- • **Odorless Organic Boost:** Retains fish proteins and oils without the typical fishy smell—garden-friendly and discreet.
- • **Cold-Process Preservation:** Unique method locks in vitamins, amino acids, enzymes & growth hormones for maximum efficacy.
- • **Pure North Atlantic Power:** Harness the nutrient-rich bounty of fresh fish for vibrant plant health.
- • **Scientifically Proven Performance:** University studies confirm it outperforms chemical fertilizers—join the green revolution.
- • **Chelated Nutrients for Fast Absorption:** Nitrogen and minerals are instantly available, fueling rapid plant revival and growth.

## Overview

Neptune's Harvest Fish Fertilizer 2-4-1 is an organic, cold-processed fertilizer made from fresh North Atlantic fish. It delivers a balanced N-P-K ratio with chelated nutrients, preserving vital vitamins, amino acids, enzymes, and growth hormones. Unlike typical fish emulsions, it retains fish proteins and oils without unpleasant odors, ensuring fast nutrient uptake and proven superior plant growth performance.

## 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 (1,191) |
| 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:** 1.02 kg
- **Liquid volume:** 36 Fluid Ounces
- **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/61E2NyHT0nL.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 L***A on 31 May 2023*

I’ve used this fertilizer now for the last two years and bought it again this year, because I found it works very well with my vegetables. I would recommend to a friend…

## 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 Brazil*
*Store origin: BR*
*Last updated: 2026-01-29*