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API

API LEAF ZONE Freshwater Aquarium Plant Fertilizer 8-Ounce Bottle

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Availability: In Stock.
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Arrives Thursday, Apr 23
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Features

  • Product Type: ARTIFICIAL PLANT
  • Package length: 19.558 cm
  • Package width: 3.048 cm
  • Package height: 4.572 cm

Description

Keep aquatic plants lush and vibrant with API LEAF ZONE Freshwater Aquarium Plant Fertilizer. API LEAF ZONE plant food for freshwater aquarium promotes strong, hardy, colorful leaves and avoid yellow, decaying leaves, using essential nutrients including chelated iron and potassium. This plant care solution promotes the lush, beautiful growth of aquatic plants. API LEAF ZONE is formulated for rapid absorption through plant leaves. This formula aids in photosynthesis and cell pressure maintenance. Use API LEAF ZONE plant food in freshwater aquariums containing freshwater fish and plants only. Dose your aquarium weekly with 5 ml of API LEAF ZONE per 10 US gallons of aquarium water. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results in promote healthy organism growth and help fish conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Brand: API


Item Weight: 0.3 Pounds


Item Form: Liquid


Liquid Volume: 8 Fluid Ounces


Specific Uses For Product: Plant Food


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1 x 1 x 6 inches; 4.8 ounces


Item model number ‏ : ‎ 576G


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 15, 2004


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #8,412 in Pet Supplies (See Top 100 in Pet Supplies) #58 in Aquarium Water Treatments


#58 in Aquarium Water Treatments:


Customer Reviews: 4.6 4.6 out of 5 stars (1,755)


Brand Name: API


Model Number: 576G


Global Trade Identification Number: 60


Manufacturer: Mars Fishcare


UPC: 317163075760 700580019538


Item Type Name: Aquarium Plant Fertilizer


Unit Count: 8.0 Fluid Ounces


Item Weight: 0.3 Pounds


Liquid Volume: 8 Fluid Ounces


Item Form: Liquid


Coverage: Medium


Specific Uses For Product: Plant Food


Target Species: Fish


Mixing Ratio: 5 ml API LEAF ZONE 10 US gallons water


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 23

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • overall good product
plants are growing great and they are very green and hardy. this product really helped my plants grow. this is a good value for your money. smells al right. the i recommend a 16 oz bottle for a 10 gallon tank, will last you at least a year. the bottle size is good.
Reviewed in the United States on March 1, 2026 by Jeffrey A. Coplan

  • Amazing really helps my Plants flourish
This helps a lot with my plants in my tank. Gives a lot of nutrients and gives a ton and longevity. Helps a ton and works with my other fertilizers.
Reviewed in the United States on March 14, 2026 by Justin Guan

  • Works great, use less than directed
Has been wonderful for my aquarium plants! I do advise using it less often and a lesser amount than directed, just because otherwise your plants will become expectant of it and if you say - leave for 2 weeks and they don’t get their dose, they’ll start throwing a fit and turning some leaves brown. Always leave em guessing. Take it easy on the plant roids. Good product lol ... show more
Reviewed in the United States on January 9, 2026 by Elimymae03

  • Plants seem to let me it
Product arrived on time and very well packaged, no leaking bottles! This a very good product and good value!i use several fertilizers but if I had to choose the most beneficial I'd say it's this one .my plants are thriving!
Reviewed in the United States on April 19, 2024 by a different name

  • easy to measure, easy to use
It seems like it worked great. Gave the plants in my new set up the boost they needed to get along early in the process and continues to deliver a very lush beautiful planted tank.
Reviewed in the United States on March 3, 2026 by John B.

  • Plant food for your planted tanks
This product is to help your aquatic plants grow and thrive. Very nice product that is much cheaper than some alternatives but highly rated in the community. Easy to use plants are thriving.
Reviewed in the United States on October 26, 2025 by John Davi

  • Get it if you want your water propagation plants to speed the growth!
This stuff is good! It really speed the roots and growth of the plants in water.
Reviewed in the United States on December 22, 2025 by PR_Sea

  • Put This In Your Leaf Zone
I apllied this to MY leaf zone......Get it? Otherwise, this is my goto when it comes to aquarium ferts. With the API name behind it you have the guarantee of quiliaty and precise measurements. Works wonderfully, plants are super healthy and I could see them green up a bit within a week. Came sealed as with all API products and had that good smell of quality assurance. ... show more
Reviewed in the United States on January 28, 2026 by ReviewStu

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