This method retains the nutrients naturally found in deep sea fish.

Cold-process hydrolysis retain nutrients in deep sea fish, hence, allowing for more nutrients in the soils and plants than artificial fertilizers.

The process break down mineral, vitamin, protein, amino acid and organic matter, into concentrated liquid for the plants and soil microbes to increase plants performance.

There are also environmental benefits as there is little waste and no chemical additives, which is ultimately better for the soils and plants.

100% Chemical-Free and natural (Non-Toxic) Complete all-in-one plant soil enhancing compounds. Longer lasting time release effect due to inherent oil content and complex nutrients, amino acids and essential fatty acids (OMEGA 3). Enhances biological activity in the soil by providing natural organic nutrients, proteins, minerals and oils. Acts as a food source to soil microbes,​ accelerates the natural composting process of post-harvest residues, cuttings and other tied-up organic and non-organic matter.

Let’s Partner With Mother Nature And Help The Enviornment

Together we can build: Enhanced crop yield, robust cannabis flowers, healthier farmlands for plants and animals and help eliminate enviormental changes.​

Return & Refund Policy

Thanks for shopping with Mad Grass Organic Fertilizer.

If you are not entirely satisfied with your purchase, we’re here to help.


You have 30 days to return an item from the date you received it. To be eligible for a return, your item must be unopened and in the same condition that you received it. Your item must be in the original packaging or packaging similar when received. Your item refund will be provided to the person who placed the order. We must have record of such.


Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item. When your return is approved, we will initiate a refund to your credit card (or original method of payment). You will receive the credit within 5 business days.


You will be responsible for contacting Mad Grass via email at: within the 30 day return time period. Mad Grass will provide / send a Paid Postage slip with your name and the return address that you will adhere to the return box. Please drop at your nearest USPS Office. Contact us if you have any questions on how to return your item to us.

Contact us via email at: or by mail at:

400 NW Gilman Blvd. #1266
Issaquah, WA 98027

Customer Reviews

“I Love this stuff. I only grow with organic fertilizer. Mad Grass Fish Fertilizer for Cannabis is the answer. Grows happy, healthy plants with easy, concentrated doses and is an excellent value. I honestly was amazed at how fast this product works.” – Sylvia- Miami, Florida

“My plants love this liquid fertilizer! I’ve never had so many bright colorful buds before. A week after I fed them for the first time, all of the plants grew like crazy.” – James -Seattle, Wa

“You can easily see it’s impact within days. My plants are the healthiest I’ve ever seen them and I am not an experienced grower. This is the perfect fertilizer for cannabis plants. Worth every penny! I think this is the best product on the market.” – Noreen – San Francisco, Ca


Plant pictures provided from a few of our happy customers