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Fish Poop.com
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Aesthetic shot of Ounce of Hope's concentrated fish poop on display
From Our Tanks of Tilapia and Koi, We Bring You:

Concentrated Fish Poop

Give your plants the nutrients they need to thrive and grow with our all-natural fish poop fertilizer. Shop now and experience the benefits for your own garden, farm, or other grow project!


NPK:  2-.15-3


(The "Buy Fish Poop" button will take you to our Amazon listing. Or, you can shop individual fish poop products below.

Buy Fish Poop

Why Fish Poop?

It Doesn’t Stink

Our Organic Fertilizer Comes with Trusted Lab Results

Fish Poop as a Fertilizer Improves Soil Health

Surprisingly, even though it’s poop, our fish poop doesn’t stink. That’s because it’s not fish emulsion. It’s 100% all-natural fish poop excreted from our 650+ tilapia and ornamental koi! The bacteria in our fish poop converts toxic ammonia (which causes poop to stink) into plant-feeding nitrate. No need for a bad smell! 

Fish Poop as a Fertilizer Improves Soil Health

Our Organic Fertilizer Comes with Trusted Lab Results

Fish Poop as a Fertilizer Improves Soil Health

Our fish poop is a nutrient-rich substance that contains various essential micronutrients. These nutrients are vital for plant growth and health. They help improve soil quality, boost crop yields, and enhance the overall health and vitality of your plants.  

Our Organic Fertilizer Comes with Trusted Lab Results

Our Organic Fertilizer Comes with Trusted Lab Results

Our Organic Fertilizer Comes with Trusted Lab Results

We test our fish poop for general nutrient levels and heavy metals. In addition, we test our water weekly by a local lab, Waypoint Analytics, and daily in-house. Through these tests, we track 16 metrics, including EC, pH, minerals/metals required for optimal growth, and more.


The data from these tests allows us to make adjustments to the e

We test our fish poop for general nutrient levels and heavy metals. In addition, we test our water weekly by a local lab, Waypoint Analytics, and daily in-house. Through these tests, we track 16 metrics, including EC, pH, minerals/metals required for optimal growth, and more.


The data from these tests allows us to make adjustments to the environment, alkalinity inputs, feeding schedules, etc. It’s what makes us confident we’re providing you with a concentrated plant food, fertilizer, and soil conditioner that works great in soil systems and, if filtered, hydroponic systems, too! 

An NPK Ratio that’s Versatile and Effective

An NPK Ratio that’s Versatile and Effective

Our Organic Fertilizer Comes with Trusted Lab Results

The NPK for our fish poop is 1.3-.18-3.4*. While that’s a “low” NPK compared to salt-based nutrients, active biology makes more of our fish poop’s nutrients immediately available.


Salt-based nutrients are added to mediums with low organic material, which is why they’re higher in NPK. That means most of the salt-based nutrients run off. The

The NPK for our fish poop is 1.3-.18-3.4*. While that’s a “low” NPK compared to salt-based nutrients, active biology makes more of our fish poop’s nutrients immediately available.


Salt-based nutrients are added to mediums with low organic material, which is why they’re higher in NPK. That means most of the salt-based nutrients run off. They’re not absorbed by the plants or soil! That leads to pollution and other consequences.


*As an organic product from an organic environment, the NPK fluctuates here and there.

Fish Poop Can Reduce Synthetic Inputs

An NPK Ratio that’s Versatile and Effective

Fish Poop Can Reduce Synthetic Inputs

It’s no secret that synthetic inputs like chemical fertilizers, pesticides, and herbicides aren’t ideal for the environment.


To prioritize soil health, many growers switch to fewer chemical inputs – which is where our fish poop comes in.


Using fish poop as a fertilizer helps allow beneficial insects and even wildlife to return. The ecosyste

It’s no secret that synthetic inputs like chemical fertilizers, pesticides, and herbicides aren’t ideal for the environment.


To prioritize soil health, many growers switch to fewer chemical inputs – which is where our fish poop comes in.


Using fish poop as a fertilizer helps allow beneficial insects and even wildlife to return. The ecosystem becomes more resilient. 


Humans benefit, too, with fewer health risks and more financial independence from avoiding the continuous costs of synthetics.

Fish Poop Goes a Long Way

An NPK Ratio that’s Versatile and Effective

Fish Poop Can Reduce Synthetic Inputs

Shake up our highly concentrated fish poop and dilute 1 ounce per gallon of water. That means a little goes quite a distance for vegetables, flowers, indoor plants, lawns, and so much more. 


Our 4 oz. container of fish poop can make 4 gallons of liquid fertilizer.  The 16 oz. container makes 16 gallons, and our gallon container makes a whopping 128 gallons of fish poop fertilizer!

It Helps Herbs, Flowers, & More Thrive

You Can Take Advantage of Beneficial Insects

You Can Take Advantage of Beneficial Insects

 Our unique, sustainable product takes your gardening and farming game to the next level. Your herbs, flowers, and other plants are going to love all-natural, 100% organic fish poop. It's a high-quality plant food, soil conditioner, and so much more! 

You Can Take Advantage of Beneficial Insects

You Can Take Advantage of Beneficial Insects

You Can Take Advantage of Beneficial Insects

Many people think all insects are harmful when it comes to growing crops. Not true! 

In fact, along with our super soil and natural fertilizers, we use some of the best crop-friendly bugs. They protect and pollinate plants and reduce the need for pesticides, which is good for your garden or farm’s natural ecosystem.

We Collect Excess from Our Aquaponics Farm

You Can Take Advantage of Beneficial Insects

We Collect Excess from Our Aquaponics Farm

We grow a lot of hemp in our 10,000 sq. ft. indoor farm in Memphis, TN. Through aquaponics, our plants use fish poop to thrive.


We don’t need all the fish poop our 650+ tilapia and koi fish produce, though – allowing us to help other gardens, farms, and more thrive, too.

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Ounce of Hope

4114 Delp Street • Memphis, Tennessee 38118 • United States

901-572-1663

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