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API

API AQUA ESSENTIAL Water Conditioner 8 ounce bottle

  • Based on 998 reviews
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Availability: In Stock.
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Arrives Wednesday, Feb 4
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Features

  • Contains one (1) API AQUA ESSENTIAL Water Conditioner 8 ounce bottle; treats up to 2,370 U.S. Gallons
  • WORKS INSTANTLY: Highly concentrated aquarium treatment works instantly to remove harmful chemicals, making tap water safe for fish in freshwater, saltwater and planted aquariums; Reduces the risk of fish loss when starting or maintaining a fish tank
  • DECHLORINATOR: Removes chlorine, chloramines, heavy metals which are found in tap water and can cause gill and tissue damage, breathing difficulty, stress and fish death
  • AMMONIA REMOVER: Removes the toxic ammonia continually released by fish through their gills, urine and solid waste. Uneaten food and decaying organic matter also add ammonia. Small amounts of ammonia stress fish; large amounts of ammonia will kill fish
  • NITRITES AND NITRATES REMOVER: Produced by fish waste and uneaten fish food, nitrites inhibit respiration and suppress the immune system at low levels, while high levels cause suffocation; Nitrates can be harmful to fish and lead to algae growth

Description

Treat your tap water, and provide a safe environment for freshwater fish instantly and easily with API AQUA ESSENTIAL water conditioner. Tap water contains chlorine, chloramines and ammonia which can cause gill and tissue damage, breathing difficulty, stress and death. API AQUA ESSENTIAL water conditioner works instantly as a water conditioner to remove chlorine and chloramines from tap water and neutralize heavy metals. API AQUA ESSENTIAL water conditioneris good for both freshwater and saltwater aquariums. API AQUA ESSENTIAL water conditioner also removes toxic ammonia, nitrites, and nitrates to restore a healthy aquatic environment when your test results show high levels of ammonia, which is extremely toxic for fish. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For close to 60 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


Liquid Volume: 237 Milliliters


Item Weight: 317.51 Grams


Item Form: Liquid


Manufacturer: Mars Fishcare


Language ‏ : ‎ English


Item model number ‏ : ‎ 423D


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 4, 2021


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #26,323 in Pet Supplies (See Top 100 in Pet Supplies) #200 in Aquarium Water Treatments


#200 in Aquarium Water Treatments:


Customer Reviews: 4.7 4.7 out of 5 stars 998 ratings


Item Weight: 11.2 ounces


Department: Unisex-Adult


Manufacturer: Mars Fishcare


Language: English


Item model number: 423D


Date First Available: June 4, 2021


Item Package Dimensions L x W x H: 7.64 x 1.73 x 1.65 inches


Item Weight: 317.51 Grams


Brand Name: API


Target Audience Keyword: Fish


Directions: Using dosing cap on bottle, add 5 ml. per 50 gallons of aquarium water to treat tap water. Add 5 ml. per 10 gallons of aquarium water to remove ammonia, nitrite, and nitrate.


Model Name: API AQUA ESSENTIAL 8 OZ.


Color: multi


Size: 8 OZ.


Material: Plastic


Number of Items: 1


Style: Water Conditioner


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Useful for binding ammonia/nitrites
This stuff is great for binding ammonia and nitrites. I started using it after a bacteria crash and I now use it as my regular water conditioner for almost all my tanks. In my experience, it did not actually remove any nitrites or nitrates, but it certainly keeps the fish more comfortable in a crisis. I also only use a slight amount more than the regular dosage to detoxify (necessary because our water is highly chlorinated here) and do not use the higher dose as instructed on the second part of the directions label because when I did, my fish appeared very stressed out and lost some color (though I should note that I did not lose any fish, a water change and a lower dose did the job just fine after). I'm still giving this a 5 star review however, as it was a life saver for a tank crash and seems to be comparable to the higher priced products that are meant to bind toxins and keep your fish safe. I don't think there are any products that can truly remove the nitrites and nitrates, and no matter what if your levels aren't going down you can't avoid the extra water changes. But we keep this stuff on hand at all times now. ... show more
Reviewed in the United States on May 18, 2022 by Kat

  • A little goes a lot
I have 2 smaller fish tanks (5 gal and 20 gal) and have always bought the treatment for new tanks as I thought that's what u use each time and would need a cupful each time. With this one however u need 1 ml for 20 US gallon. Only 1!! This bottle will seriously last for at least a yr with weekly water changes and the price is unbeatable. It's a win win all around for this. Works great (you can actually watch the water clear up once u add the treatment in a bucket). ... show more
Reviewed in the United States on February 18, 2024 by Barbie_Girl

  • Must have.
A must have for me definitely recommend for tank maintenance.
Reviewed in the United States on November 4, 2025 by London Goff

  • Love it
This has helped so much with keeping my water parameters at healthy levels
Reviewed in the United States on December 13, 2024 by Rachael Swartout

  • I love this stuff
I love products that do what they say they're going to do. This one does just that. Great product for the money, my fish are thriving, my water is clear and always safe. Easy to use too.
Reviewed in the United States on September 26, 2024 by K. Annie Heart

  • 10/10
API is my ride or die.
Reviewed in the United States on August 4, 2025 by Emily wrye

  • Quite a helper
Effective and easy to use. I only have turtle in my tanks so I can't speak for fish. It works well for my tank ammonia level is controlled ever since I started using this at least per my testing. I read some read some review in regards to fish dying with this product (perhaps this product works too well and changed the chemical content drastically which could have kill delicate fish - totally not an expert again) overall I am satisfied with this product at the moment. ... show more
Reviewed in the United States on December 12, 2022 by JTP

  • Great
Always a great product
Reviewed in the United States on April 29, 2025 by Jamie

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