Fish Fertilizer vs. Emulsions
Not all fish fertilizers are made the same. Here’s how Neptune’s Harvest Hydrolyzed Fish compares
with traditional fish emulsions, solubles, and high-nitrogen “so called” hydrolyzed fish concentrates.
Neptune’s Harvest
Nutrients of Fish Fertilizer
Nutrients Analysis of Neptune’s Harvest Fish Fertilizer
Elements
| Nitrogen | 2.23 |
| Phosphorous | 4.35 |
| Potassium | 0.30 |
| Calcium | 0.75 |
| Sulfur | 0.17 |
| Magnesium | 0.04 |
| Sodium | 0.16 |
| Iron | 26.0 ppm |
| Manganese | 3.0 ppm |
| Copper | < 0.1 ppm |
| Zinc | 9.0 ppm |
| Boron | 2.5 ppm |
| Molybdenum | < 0.1 ppm |
| Aluminum | 8.0 ppm |
| Lead | < 1.0 ppm |
Amino Acids % by Wt.
| Threonine | 2.29 |
| Aspartic Acid | 5.41 |
| Serine | 2.74 |
| Proline | 3.07 |
| Glutamic Acid | 8.03 |
| Glycine | 6.22 |
| Alanine | 4.15 |
| Cystine | 0.38 |
| Valine | 2.17 |
| Methionine | 1.81 |
| Isoleucine | 1.60 |
| Leucine | 3.42 |
| Phenylalanine | 1.67 |
| Lysine | 4.16 |
| Histidine | 1.09 |
| Arginine | 3.74 |
| Hydroxyproline | 1.67 |
Why This Matters
Neptune’s Harvest Fish Fertilizer provides more than basic N-P-K. It includes naturally occurring minerals and amino acids that support soil biology, plant nutrition, and strong crop development.
View Fish Fertilizer ›Featured Sellers
Meet the growers and retailers who trust Neptune’s Harvest to deliver exceptional results across the country.
★★★★★
This just in, from the grower of the heaviest pumpkin in North America this year!
I've been using Neptune's Harvest products for about 20 years of growing giant pumpkins. Always impressed with the product, and consider it an important part of my soil fertility....
★★★★★
Hi there! I am in Central Florida. These are my Gherkin pickle plants. There are 3, that were all planted on the same day. As you can see, two are doing very well...
★★★★★
Dear Neptune's Harvest, Here is my bougainvillea that I’ve been treating with the Rose and Flowering for the last month...
★★★★★
Neptune’s Harvest Fertilizer is a complete game changer for this organic home gardener! I use the liquid Fish & Seaweed type once a week- a little bit really goes a long way...
★★★★★
Dear Neptune’s Harvest,
Take a look at these photos which I took this morning. Let me explain. This is a wall garden of a client here in Cape Town. This wall garden is several years old and every year his landscaper replaces all the Begonias....
★★★★★
ANOTHER RECORD!!!
Say, just wanted to give a quick thanks. You guys definitely helped me grow the largest pumpkin in North America and 2 potential world...
★★★★★
ANOTHER WORLD RECORD UNDER OUR BELT!!!
This World Record 470.5 lb. Bushel Gourd was growing right up to the day I harvested it. All Summer the plant was foliar fed weekly with the Amino
★★★★★
ANOTHER WORLD RECORD UNDER OUR BELT!!!
This World Record 470.5 lb. Bushel Gourd was growing right up to the day I harvested it. All Summer the plant was foliar fed weekly with the Amino
★★★★★
Dear Neptune's Harvest, My tomatoes are well on their way to 6 feet tall!! I'm 5' 9" barefoot!! I foliar spray with Fish Fertilizer and side dress as needed!! I have most tomatoes over...
★★★★★
I'm using your products in my garden with good results... Here's a photo of my tomatoes last year. They grew to 13ft. One plant had over 120 tomatoes on it...
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