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API

API TAP WATER CONDITIONER Aquarium Water Conditioner 4-Ounce Bottle, TAP WATER COND. 4 OZ

  • Based on 1,308 reviews
Condition: New
Product info up-to-date
$4.78 Why this price?
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Availability: In Stock.
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Arrives Sunday, Jun 14
Order within 18 hours and 28 minutes
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Features

  • Contains one (1) API TAP WATER CONDITIONER Aquarium Water Conditioner 4-Ounce Bottle
  • Neutralizes chlorine, chloramines and other chemicals to make tap water safe for fish
  • Prevents tap water chemicals from causing gill destruction, tissue irritation and fish death
  • Super strength, high concentration formula
  • Use when adding or changing water and when adding new fish to freshwater and saltwater aquariums

Description

Good water quality is the key to a healthy, beautiful aquarium. Tap water contains chemicals, such as chlorine and chloramines, which make water safe for drinking, are highly toxic to fish. High levels of these chemicals destroy fish gill tissue, preventing the uptake of oxygen which can lead to fish death. Even low levels irritate delicate fish tissue. Tap water must be treated before adding fish to make sure fish remain healthy. API TAP WATER CONDITIONER Aquarium Water Conditioner instantly removes chlorine and neutralizes chloramines. It also detoxifies heavy metals in tap water. The formula of API TAP WATER CONDITIONER incredibly concentrated. You only need up to 3 ml to treat 10 gallons of water. It's safe for all aquatic and can be used in both fresh and salt water. Use during aquarium set up, water changes and adding fish. 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


Liquid Volume: 4 Fluid Ounces


Item Weight: 0.3 Pounds


Item Form: Liquid


Number of Packs: 1


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.5 x 1.5 x 6 inches; 4.8 ounces


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 52B


Date First Available ‏ : ‎ June 15, 2004


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #6,047 in Pet Supplies (See Top 100 in Pet Supplies) #30 in Aquarium Water Treatments


#30 in Aquarium Water Treatments:


Customer Reviews: 4.7 4.7 out of 5 stars (1,621)


Brand Name: API


Manufacturer: Mars Fishcare


UPC: 017163002529


Global Trade Identification Number: 29


Model Number: 52B


Manufacturer Part Number: 52B


Unit Count: 1 Count


Item Type Name: Aquarium Water Conditioner


Included Components: 1 Bottle 4-Ounce


Liquid Volume: 4 Fluid Ounces


Item Weight: 0.3 Pounds


Item Form: Liquid


Pet Type: Fish


Target Species: Fish


Allergen Information: Apple Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 14

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


  • Works great!!
Size: Pack of 1
Works great. So much cheaper than buying bottled water. Only takes a little bit to clean faucet water. Has built in measuring cup on cap. I was a little skeptical of it working because I have extremely treated water. You can smell of chlorine but it works great no fish have died. I’ve been using it for about a month. It’s empty and I’m about to order another one. I was extremely pleased with it. ... show more
Reviewed in the United States on January 30, 2026 by GB

  • Workes Good Workes Good
Size: Pack of 1
This water conditioner is a lifesaver! Makes tap water safe for my fish instantly, and my tank has never looked healthier. Super easy to use and really effective.
Reviewed in the United States on December 29, 2025 Reviewed in the United States on December 29, 2025 by Shanese Edwards Nevers

  • Remove chlorine from tap water
Size: Pack of 1
A must for new aquarium removes chlorine and for the safe use of tap water
Reviewed in the United States on January 5, 2026 by Miguel

  • essential aquarium item
Size: Pack of 1
It is API conditioner, it works, bottle was not broken, arived on time, and lasts long enough. not much else of say.
Reviewed in the United States on September 27, 2025 by Sky Shiozaki

  • This product really works for your aquarium friends
Size: Pack of 1
A must have product
Reviewed in the United States on April 26, 2026 by willie spearman

  • Good buy
Size: Pack of 1
Works well.
Reviewed in the United States on June 5, 2026 by Samuel Cardinal

  • Will buy again and recommend to anyone
Size: Pack of 1
Good stuff I use it to remove chlorine from my water that I use for my plants. Definitely makes a difference.
Reviewed in the United States on January 4, 2026 by julia ny

  • Seems to work
Size: Pack of 1
I've been using this for over a year to help fix tap water to use in an aquarium. The critters are still doing great so seems like this works. I do 0.17 ml to the gallon using a 1ml no needle syringe style liquid measurement tool.
Reviewed in the United States on November 16, 2025 by R

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