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How to Make Fish Amino Acid: The Ultimate Guide

6 min read April 2026

Transform simple fish waste into "liquid gold" for your garden. Fish Amino Acid (FAA) is an incredible organic fertilizer that you can easily make at home for a fraction of the cost of commercial products.

Why Make Your Own Fish Amino Acid?

Fish Amino Acid is one of the pillars of Natural Farming. It is rich in nitrogen and over 20 types of amino acids that plants can absorb directly. While we offer premium ready-to-use FAA at FarmRoots, making it yourself is a fantastic way to:

  • Reduce Waste: Respurposes fish guts, heads, and bones that would otherwise be discarded.
  • Save Money: High-quality organic fertilizers can be expensive; this DIY method is nearly free.
  • Total Control: You know exactly what goes into your fertilizer — no chemicals, just nature.

The Science of Fermentation

The secret behind Fish Amino Acid is osmosic pressure. When you combine fish and jaggery in equal parts, the high concentration of sugar draws out the proteins and nutrients from the fish cells. Beneficial microbes then break these proteins down into free amino acids, making them bio-available for your plants.

What You'll Need

  • Fish Waste: 1kg (Heads, guts, and bones are best).
  • Solid Jaggery: 1kg (Dark, unrefined jaggery is preferred).
  • Plastic Container: A clean 3-liter jar with an airtight lid.
  • Chopping Board & Knife: Dedicated for this purpose.

Step-by-Step Preparation Guide

01

Prep the Fish

Chop the fish waste into small 1-inch pieces. Smaller pieces ferment faster and more evenly.

02

The First Layer

Place a layer of crushed jaggery at the bottom of the container. This prevents the fish from sticking to the base.

03

Alternating Layers

Add a layer of fish, then a layer of jaggery. Repeat until the container is 2/3 full. Do not fill to the top!

04

The Sugar Cap

Finish with a thick layer of jaggery. No fish parts should be visible. This keeps flies and bad odors away.

5. Fermentation Period

Seal the lid tightly and store the jar in a cool, dark, and well-ventilated area. Let it sit for **30 to 45 days**. Do not open the lid frequently, though you may gently shake the jar once a week.

6. Harvesting the Liquid Gold

After 45 days, the fish will have completely liquified. Strain the mixture through a fine mesh or cloth. Store the dark, viscous liquid in a clean glass or plastic bottle at room temperature. It can last for up to 6 months!

Troubleshooting: The Smell Test

Properly made Fish Amino Acid should smell sweet and fermented, like soy sauce or molasses. If it smells like rotting meat or sewage, the fermentation failed (likely due to air intake or low sugar). If this happens, discard the batch and start fresh — accuracy is key!

How to Use Your DIY FAA

Remember, this is a **highly concentrated** fertilizer. Never apply it directly to plants without dilution.

  • Regular Maintenance: 2ml FAA per 1 liter of water.
  • Fruit Setting Stage: 5ml FAA per 1 liter of water.
  • Application: Foliar spray early in the morning or late evening for best absorption.

Short on time?

If you need high-quality Fish Amino Acid right now, we've got you covered. Our FAA is professionally fermented for maximum potency.

Buy Premium Fish Amino Acid