--- product_id: 17289910 title: "Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Gallon)" brand: "neptune's harvest" price: "€ 123.98" currency: EUR in_stock: true reviews_count: 13 category: "Neptune's Harvest" url: https://www.desertcart.hr/products/17289910-fish-fertilizer-2-4-1-organic-liquid-plant-fertilizer-fish store_origin: HR region: Croatia --- # 2-4-1 NPK ratio for balanced growth 100% North Atlantic fish hydrolysate 1 oz per gallon dilution for easy use Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Gallon) **Brand:** neptune's harvest **Price:** € 123.98 **Availability:** ✅ In Stock ## Summary > 🐟 Dive into growth with Neptune’s Harvest — where ocean power meets garden magic! ## Quick Answers - **What is this?** Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Gallon) by neptune's harvest - **How much does it cost?** € 123.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/17289910-fish-fertilizer-2-4-1-organic-liquid-plant-fertilizer-fish) ## 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 - • **FOMO-Worthy Results:** Join thousands of savvy gardeners who swear by Neptune’s Harvest for lush, nutrient-dense yields that make neighbors green with envy. - • **Ocean-Sourced Purity:** Made exclusively from clean North Atlantic fish, ensuring premium organic nutrition free from farmed or freshwater contaminants. - • **Soil Health Revolution:** Boosts beneficial microbes, improves soil structure, moisture retention, and naturally deters pests—building a thriving ecosystem beneath your plants. - • **Versatile Indoor & Outdoor Power:** One simple dilution feeds everything from delicate indoor plants to robust outdoor gardens, trees, and lawns with ease. - • **Nature’s Perfect Growth Catalyst:** Harnesses cold-processed fish hydrolysate preserving vital enzymes, amino acids, and growth hormones for unstoppable plant vitality. ## Overview Neptune’s Harvest Fish Fertilizer (2-4-1) is an organic liquid plant food crafted from 100% North Atlantic fish hydrolysate using a cold process that preserves essential nutrients. Designed for both indoor and outdoor use, it delivers balanced NPK plus micronutrients, enzymes, and omega oils to boost plant growth, soil health, and pest resistance. Easy to apply at 1 oz per gallon, it supports vegetables, flowers, trees, and lawns with proven, nutrient-dense results. ## Description desertcart.com : 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 (Gallon) : Garden Fertilizers : Patio, Lawn & Garden Review: Super stinky stuff that’s worth it’s weight in gold. - Make no mistake - you do not want to touch it. Haha. I’ve set this up on a timer drip system for landscaping and garden now in two different properties. It’s amazing stuff. Plants loooove it. Water early morning for just 10 minutes and within a week, plants take off. Now it’s set to water it in every 3 days. Just remember - it smells horrid - so do not plan to touch it and then not scrub yourself down (which is why ours is on an automated drip system). Have recommended it to friends and everyone has had amazing results. They have a smaller size if you want to try it out but I’m sure once you set it up so you don’t have to touch it, you’ll be hooked too. Happy gardening! Review: These fertilizers are great - 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 - 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 qulity - Package Contents: Neptune's Harvest (2-4-1) Fish Fertilizer ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000IJCZC4 | | Best Sellers Rank | #4,472 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #207 in Garden Fertilizers | | Brand Name | Neptune's Harvest | | Coverage | Medium | | Customer Reviews | 4.7 4.7 out of 5 stars (2,953) | | Global Trade Identification Number | 00081435040090 | | Included Components | fertilizers | | Item Form | Liquid | | Item Type Name | Neptune's Harvest | | Item Weight | 9 Pounds | | Liquid Volume | 3784 Milliliters | | Manufacturer | Neptune's Harvest | | Mixing Ratio | 1:128 | | Model Number | HF191-1 | | Specific Uses For Product | Organic | | Target Species | Fish | | UPC | 081435040090 | | Unit Count | 144.0 Ounce | ## Product Details - **Brand:** Neptune's Harvest - **Item Form:** Liquid - **Item Weight:** 9 Pounds - **Liquid Volume:** 3784 Milliliters - **Specific Uses For Product:** Organic ## Images ![Fish Fertilizer (2-4-1) - Organic Liquid Plant Fertilizer - Fish Hydrolysate for Vegetables, Flowers, Fruit, Trees, Grass - Indoor and Outdoor Plant Food (Gallon) - Image 1](https://m.media-amazon.com/images/I/614Hj8-DC1L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Super stinky stuff that’s worth it’s weight in gold. *by A***R on July 21, 2025* Make no mistake - you do not want to touch it. Haha. I’ve set this up on a timer drip system for landscaping and garden now in two different properties. It’s amazing stuff. Plants loooove it. Water early morning for just 10 minutes and within a week, plants take off. Now it’s set to water it in every 3 days. Just remember - it smells horrid - so do not plan to touch it and then not scrub yourself down (which is why ours is on an automated drip system). Have recommended it to friends and everyone has had amazing results. They have a smaller size if you want to try it out but I’m sure once you set it up so you don’t have to touch it, you’ll be hooked too. Happy gardening! ### ⭐⭐⭐⭐⭐ These fertilizers are great *by M***O on January 6, 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. ### ⭐⭐⭐⭐⭐ A great fertilizer for nearly all plants...! *by D***J on March 26, 2026* This is a great fertilizer for nearly all plants (succulents and cacti not so much). ## Frequently Bought Together - Neptune's Harvest Fish Fertilizer 2-4-1, Gallon - Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 1 Gallon - Neptune's Harvest Seaweed Fertilizer 0-0-1, Gallon --- ## 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/17289910-fish-fertilizer-2-4-1-organic-liquid-plant-fertilizer-fish](https://www.desertcart.hr/products/17289910-fish-fertilizer-2-4-1-organic-liquid-plant-fertilizer-fish) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-22*