






🌿 Unlock Nature’s Secret Growth Elixir — Because Your Plants Deserve the Ocean’s Best!
Neptune's Harvest Fish Fertilizer is a premium organic liquid plant food made from 100% North Atlantic ocean fish using a cold hydrolysate process that preserves vital nutrients. With a balanced 2-4-1 NPK ratio plus essential micronutrients, amino acids, and omega oils, it supports robust growth for vegetables, flowers, trees, and lawns. Easy to use indoors or outdoors, it enhances soil health by feeding microbes and improving structure, while naturally deterring pests. OMRI listed and pet-safe, it’s the go-to choice for millennial gardeners seeking sustainable, high-performance plant nutrition.










































| ASIN | B0012Q2TFA |
| Best Sellers Rank | #11,295 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #478 in Garden Fertilizers |
| Brand | Neptune's Harvest |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,255) |
| Global Trade Identification Number | 00081435036123 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2.25 pounds |
| Item model number | HF136 |
| Liquid Volume | 946 Milliliters |
| Manufacturer | Neptune's Harvest |
| Number of Items | 1 |
| Product Dimensions | 3.5 x 3.5 x 8.75 inches |
| Specific Uses For Product | Shade,Shade Protector |
| UPC | 081435036123 190283017229 |
| Unit Count | 36.0 Ounce |
M**O
These fertilizers are great
i've been using neptune fish fertilizers for awhile, when my plants look a little limp and maybe overwatered, these help revive plants. I use them on my avocado trees, my blueberry plants and other vegetables and they all do well when i feed them a twice sometimes more a year watering with this concentrated fertilizer. Yes it smells, but it works. It's interesting that a broken down animal like fish can fertilize a plant, like it feeds on the protein, so not sure how it works, but just found it interesting and great that it works so well.
T**I
Beautful leafy Vegetables !
Love this stuff for my leafy plants. Been applying it on my cabbages, spinach,kale and chard this fall. Just wow! They love it. Be sure to switch it up in the late spring/early summer tho, as it will attract slugs and snails.
M**X
Works great !
Smell is rough but there is a noticeable difference in the plants fertilized with this stuff a little really goes a long way . I would purchase again tomato and strawberry plants had wayyyy more activity
D**N
Easy, clean organic nutrients! Prices have increased recently though
I used to buy this brand's other product, the combined Fish and Seaweed liquid fertilizer. Buying the fish fertilizer and kelp fertilizer separately really helps you customize which nutrients to feed your soil/plants at various life stages. For this fish fertilizer, it is mild but plants actually love that in a fertilizer! Fish hydrolysate(what this product is) is actually supplying your plants with an abundance of amino acids. For the supplied amino acids, your plant now gets to skip making their own (which requires time and energy) and will graciously take this free energy and food and flourish! You don't have to worry about burning your plants with this product. I use it either every third or fourth watering for seedlings. I like to also use this brand's seaweed (or is it kelp?) Liquid in conjunction usually. This helps prevent any early issues and gives the plants a great start, and it's so gentle you don't have to worry about overdoing it and causing issues with young seedlings. I can't think of other fertilizers that you can apply to very young plants and not have to worry about overdoing things. If you applied even heavily diluted synthetic fertilizer you could easily burn your plants or kill seedlings. This is why so many experienced gardeners will tell you to use a weak soil and don't fertilize for quite some time until your seedlings are more established. This product is an exception to that rule because it is natural and gentle. For more established plants I would use this product in conjunction with higher strength organic fertilizers. Probably the most natural way to give your plants nutrients would be to top dress some organic fertilizer and add this product to your water and water those amendments in. I haven't discovered a time when this product causes any issues at all, and the plants seem to love it!
F**N
Must have for plant lovers!
Alright, folks, gather 'round, and let me regale you with my adventure in the world of fish poop fertilizer. Now, I'm no expert in gardening, but this stuff had me curious, and curiosity didn't just kill the cat; it fertilized it! First things first, I opened the bag, and oh boy, it hit me like a fish market on a hot summer's day. The smell? Let's just say it's not exactly the perfume of the year. But I thought, "Hey, it's fish poop; what did I expect, lavender fields?" So, you know, just be prepared to hold your nose or light a scented candle when you use this stuff. Now, here's the good part. My plants loved it! I mean, they went absolutely bananas. It was like they'd discovered the secret to plant nirvana. It's like feeding your flora a Michelin-star meal – they thrive and flourish like they're at a garden party of the century. And let's not forget the novelty factor. I mean, telling your friends you're using fish poop to fertilize your garden? Priceless. It's like gardening with a touch of bathroom humor. In conclusion, fish poop fertilizer is like a smelly, magical elixir for your plants. If you can get past the pungent aroma, your garden will thank you with lush, vibrant blooms and veggies. So, if you're ready to dive into the world of stinky horticulture, this stuff is the catch of the day. Just remember to bring your nose clips!
M**.
Plants are thriving!
This product was a recommendation from a Facebook group that I follow. Many users swore by it, so I had to try it. I'm so glad I did. I have seen a noticeable difference almost immediately in my plants. They're growing faster and just overall appear more healthy. I'm not sure how to appropriately rate the scent, it is fish after all. I can definitely tell there is a fish odor, but I am able to water my indoor plants and there is no lingering, residue smell. Just make sure your drip tray isn't holding any extra water and you shouldn't notice a smell.
X**X
Smell bad, grow fast.
Why did you pick this product vs others?: I've used this before, and it works so well, I still give it 5 stars even though my wife complains about the smell if I use it on my indoor plants. Growth rate: Great growth rate, and I haven't had any fertilizer burn problems.
J**S
works great
works great
J**A
The delivery was speedy, and the product works as directed.
U**C
Great for vegetable and flower garden. Quality is pretty good.
J**F
I would by it again when I need more. I put a full measured dose on my Habaneros pepper plants a few nights ago and woke up to deep green leaf and proud tall plants this morning. They look amazing! Can't wait to see how it affects the pepper production.
D**E
I am currently using this product in an indoor organic grow tent with bioactive soil. I am fairly new and don't have a ton of experience yet with how my plants grow, but i have to admit that I can see a very beneficial impact on my plants. Trying to grow organically doesn't necessarily deliver the largest yields, but the quality is outstanding(especially with all of these bioavailable proteins and nutrients)! PLEASE NOTE, I do not feed my plants. I feed my soil. By using this product, I can provide my amended high porosity soil with top notch bio available proteins and nutrients and omega acids. This product replenishes the major nutrients the plant is absorbing, while fueling the micro organisms present in the soil, which do all of the heavy lifting for the plants. I noticed when my plants shifted from veg to bloom, I got a lot less discoloration in the leaves, since the soil was able to provide more than enough bioavailable nutrients, even though the plants started up taking a conciderable amount more nutrients, which was hard to manage on my last run, using all organic amendments and which is the main limiting factor for growing organically, since I am not force feeding my plants artificial salt nutrients derived from perto chemicals and balanced with Ph metres and more chemicals and stuff. Neptunes harvest helped bridge that gap. All the fungus and bacteria in my soil, eat and break down the organic material(organic/veganic dry flower and veg fertz, boogie brew compost tea, kelp extracts and neptunes harvest) and provide all those colonies with the resources needed to thrive and support the plant with all the natural waste that is bio available and created by the organisms present in my soil. Think of my system as trying to replicate a forest floor and the natural process of breaking down these materials. Neptunes harvest is a big step up from the Alaskan fish ferts and have a dramatic and noticeable effects within 24-48 hours after even the first application. And because of the cold press hydrolyzation process this product goes through, you retain so much more of the micro nutrients and protiens and omegas fatty acids that would normally be destroyed in other processing methods also making this product smell significantly less than other fish emulsions. The Alaskan fish emulsion stinks to high hell but is still benefial in its own ways and is certainly better than nothing when used properly, but doesn't provide near as much benefits since the microorganisms take longer to breakdown those chains and molecules into something easily usable for the plants. I am not sponsored by this company at all, but i truly have nothing bad to say about them, besides not being more locally available in Alberta or Canada in general. I will review and change from 4 stars to 5 after my first harvest using this product, if things keep going the way they are, and if you start distributing here in Canada, making your product more easily available. I have only experienced the effects for a few weeks and want to make sure everything goes smoothly! So far so good. Thank you neptunes harvest for releasing a high quality product, that is also environmentally friendly and organic! I would love to wholesale/distribute this product in Calgary alberta and help spread the word and the product to more people because I stand by this product 100%. I have even gone out of my way to go to the local grow shops and educate them on the benefits of neptunes harvest, over the Alaskan fish fertilizer, trying to convince them to put your products on the shelves and replace the other brands entirely. It is completely worth the extra couple of dollars and the return customer base would be massive on being an exclusive dealer of this product, especially here in Alberta, basically Canada's grow op headquerters lol.
L**A
This product did wonders to my peppers and onion transplants. They are looking so healthy. I will be buying again.
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