Search  for anything...
API

API LEAF ZONE Freshwater Aquarium Plant Fertilizer 18-Ounce Bottle White

  • Based on 7,011 reviews
Condition: New
Checking for product changes
$11.24 Why this price?
Save $5.94 was $17.18

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Non-returnable due to Food safety reasons

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Apr 19
Order within 4 hours and 42 minutes
Available payment plans shown during checkout

Features

  • Aquarium plant food
  • Promotes healthy aquarium plants
  • For freshwater tanks
  • Item Package weight : 1.25 pounds

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 prevent 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 to control algae, promote healthy bacterial growth and help control and cure fish diseases and 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: 544.31 Grams


Item Form: Liquid


Coverage: Medium


Liquid Volume: 473 Milliliters


Brand: API


Item Weight: 544.31 Grams


Item Form: Liquid


Coverage: Medium


Liquid Volume: 473 Milliliters


Specific Uses For Product: Active


Target Species: Fish


Global Trade Identification Number: 64


Manufacturer: Mars Fishcare


UPC: 317163105764 719279584660 019014705764 317163105672


Product Dimensions: 1 x 1 x 6 inches


Item Weight: 1.2 pounds


Department: Unisex-Adult


Country of Origin: USA


Item model number: 576J


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 19

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • 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


  • Plants are flourishing
Pattern Name: Fertilizer Size: 16oz
I love this, i apply it everytime i do a water change. My plants are thriving with this!
Reviewed in the United States on April 30, 2024 by Nicole

  • very nice
Pattern Name: Fertilizer Size: 16oz
works great for new tanks
Reviewed in the United States on March 3, 2024 by daniel gorman

  • Works so well
Pattern Name: Fertilizer Size: 16oz
Our plants have just thrived using this.
Reviewed in the United States on March 19, 2024 by Lilac coffee Lilac coffee

  • Works great for my betta tank
Pattern Name: Fertilizer Size: 16oz
My aquarium plants in my 5 gallon tank absolutely loved this stuff. They started growing like crazy since I started putting this in. But since there were other reviews where peoples fish died because of this product, I was concerned so I only put half the recommended dose from the bottle every time and my betta fish doesn't seem to mind it at all and shes as healthy as ever. ... show more
Reviewed in the United States on October 11, 2023 by Minhthi

  • Love it!
Pattern Name: Fertilizer Size: 16oz
Worth the money. Helps my tanks plants looks incredible!! Fish are doing great. Absolutely love it
Reviewed in the United States on December 31, 2023 by Lyn

  • !!Warning!! for all hobbyist... Do not overdose use it according to the direction provided.
Pattern Name: Fertilizer Size: 16oz
!!Warning!!! Product is awesome work fine for me until I overdose it. Well I bought it for my heavily planted aquarium with more than 15 plants species. it works well even better than I was expecting. all of my plants were flourishing and I was so happy and the nightmare begins with pest snail. and they were growing day by day I tried everything moved my fish from the aquarium to my other aquariums. After all my research I concluded that I need to use some chemical like copper sulfate or something. I was afraid to do anything because my aquarium plants are healthy and growing awesome BTW I was using Leaf zone once a week after every water change of 25% and I was providing enough CO2 as well. Before treating my aquarium with any chemical I just added double dose of leaf zone just for safe side so plants will not effect(I dont know why). very next morning I saw all snails were not moving and are all on my gravel(Black gravel so was hard to see the small) Initially I was very happy that it is killing snails so I have to deal only some of the snails. and with 2 days I realize that all snails are already dead and all my plants are glowing but hornwort start losing its leaf and then slowly slowly all of my plants are dying. I did water changed but couldn't able to save some of the plants I lost almost 50% of my plants. I am still using it my plants are start growing again hopefully will recover in 2/3 months. some species are 100% gone will buy them again. I am still happy that I dont have any snail in my aquarium so whoever wants to get rid of snails can use it with caution. ... show more
Reviewed in the United States on May 19, 2017 by Javaria

  • Great for plants
Pattern Name: Fertilizer Size: 16oz
I paired this with a diy CO2 setup to try to get my plants to grow denser and it’s been fantastic. My rotala has jumped in good dense growth and the plants I have growing out the top of my aquarium have started growing faster as well. I use 3/4 of a cap a day and do a large water change once a week to get rid of extra nutrients in the water. ... show more
Reviewed in the United States on February 29, 2024 by Clark Clark

  • I would recommend using a separate Iron and Potassium fertilizer instead of this combined one, or better yet use dry ferts
Pattern Name: Fertilizer Size: 16oz
Let me start by saying I am no expert on aquarium plants and am learning more every day. This product seems fine if you really do want one product that has both Iron and Potassium in it and want the convenience of a premixed liquid. But, with macro fertilizers similar to this one, many people also like to use a trace mineral combo like Seachem Flourish or use a dry trace combo like plantex when using the PPS Pro fertilizer system. This product could cause a problem if using a trace mineral fertilizer with this product. When I first got my plants I was using this product as well as some other liquid fertilizers. I realized my trace fertilizers also had iron in them so I was getting my iron levels way too high. So, I had to find a different potassium fertilizer without iron in it and quit using the rest of this bottle. For better control I'd suggest using separate fertilizers (for everything but your trace fertilizer) not a combo fertilizer like this. I was at first intimidated and tried liquid fertilizers like this, but many experienced aquarium keepers warned it would become expensive and to use dry fertilizers instead. After doing research I have finally taken the plunge to all dry fertilizers, I save a ton of money and have way more control over my PPS Pro mixture. It only takes me about 10 minutes to weigh, and mix my macro and trace bottles with distilled water, then they last about 3 months before its time to mix the bottles again. I spent about $50 total for all my macro and trace dry fertilizers plus $10 for a digital 100 gram scale in .01 increments. According to my math the dry fertilizers I purchased will last me three years for my size tanks. If I had continued using pre-manufactured liquid macro and trace fertilizers like this and the other necessary ones, I would have spent $400-600 over the three years. So, that's a pretty large savings. But, more so than the savings I like the control of the dry fertilizers. But, this product may be fine for beginners, just make sure none of your other trace fertilizers have iron in them as well and make sure to buy the other required macro liquid fertilizers as well(this one does not contain all Macro fertilizers). Or test to see if you need the others. After testing my water, I have high enough nitrates from fish waste that I don't add nitrogen to my fertilizer mix, but I do need Phosphorous as phosphates don't even register on my test for my tanks. PS. If you do decide to try dry fertilizers some day there are several reputable companies that sell these fertilizers. I did quite a bit of research myself but still had a lingering question. The company I used had great support, and responded to my emailed questions throughout the weekend, the guy knew his aquarium information so I ordered the following Monday. I have been very happy, but you do need to do some initial research. Unfortunately at the time of this posting amazon doesn't seem to sell these dry fertilizers, so you will have to use another company like I did. ... show more
Reviewed in the United States on August 13, 2013 by Jack

Can't find a product?

Find it on Amazon first, then paste the link below.