Neptune's Harvest 2-4-1 – 5 Gal. Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2, 4 lb 4.8 out of 5 stars 147 $18.80 $ 18. Neptune's Harvest Fish (2-4-1) is a 100-percent organic fertilizer with fully-chelated macro and micronutrients, vitamins, enzymes, amino acids and growth hormones that occur naturally in fish. Neptune’s Harvest is an organic fertilizer made from fresh North Atlantic fish. Manufactured using a cold hydrolysis process, this liquid fish fertilizer with high phosphorus (the middle number in the analysis) is an important aid in reducing transplant shock and growing vigorous Neptune's Harvest is put through a 165 mesh screen before going into the holding tank, and then a 150 micron screen before going into the final container and shipping. Use this fertilizer as a soil additive or It is made by a unique cold process that protects the vitamins, amino acids, enzymes and growth hormones. 80 Get it as soon as Tue, Nov 3 FREE Shipping on your first order shipped by Amazon Only 5 left in stock - order soon. Once the fish, caught by local fishermen, has been cleaned and filleted for human consumption, everything that is left over is then processed, screened,... Read more » Our fertilizers are made from fish caught in the mineral rich North Atlantic Ocean. It is the consistency of chocolate milk and is very easy to apply. Neptune’s Harvest is an organic liquid fish fertilizer company from Gloucester, MA. PH Solutions Peroxide Odor Control Carbon Filters Carbon Filters Accessories Ozone Generator ABOUT MY ACCOUNT CHECKOUT CART CONTACT US Your shopping bag is empty.