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

  • Based on 1,308 reviews
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Availability: In Stock.
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Arrives Thursday, Feb 12
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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: Stick


Manufacturer: Mars Fishcare


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: #7,832 in Pet Supplies (See Top 100 in Pet Supplies) #35 in Aquarium Water Treatments


#35 in Aquarium Water Treatments:


Customer Reviews: 4.7 4.7 out of 5 stars (1,337)


Item Weight: 4.8 ounces


Manufacturer: Mars Fishcare


Item model number: 52B


Date First Available: June 15, 2004


Item Package Dimensions L x W x H: 3.7 x 1.46 x 1.38 inches


Item Dimensions LxWxH: 1.5 x 1.5 x 6 inches


Item Weight: 0.3 Pounds


Brand Name: API


Target Audience Keyword: fish


Directions: Use when setting up an aquarium, and when adding or changing water. Using dosing cap on bottle, add 1 ml for each 20 gallons (76 L) of aquarium water to remove chlorine and heavy metals. To detoxify chloramines, add 5 ml for each 30 gallons (114 L) of aquarium water. Tip heavy metals, such as copper, lead, and zinc, can be found in most tap water supplies. These metals are toxic to tropical fish. So treat the aquarium when adding tap water.


Country of Origin: United States


Model Name: TAP WATER COND. 4 OZ


Size: Pack of 1


Number of Items: 1


Style: Aquarium Treatment


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Feb 12

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


  • Purchased to treat houseplant water
Size: Pack of 1
Seems to do the job 👍
Reviewed in the United States on November 7, 2025 by The One Alongside

  • Works great, good price
Size: Pack of 1
Easy to use, great product
Reviewed in the United States on October 29, 2025 by Ruixing

  • Effective
Size: Pack of 1
Works as promised
Reviewed in the United States on December 17, 2025 by Jerry parish

  • Works great with tap water
Size: Pack of 1
My fish are thriving, thanks
Reviewed in the United States on November 22, 2025 by Orlaith Schroeder

  • 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

  • For large tanks
Size: Pack of 1
We have a small 5 gallon tank and the smallest measurement on the cap is 20 gallons, so we have to eyeball a quarter of the tiny bit in the cap. Didn’t notice a huge change in water quality
Reviewed in the United States on August 25, 2024 by Michael Hardin

  • 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

  • works well, cheap, lasts a while
Size: Pack of 1
just as described. cheap and lasts a while bc of how concentrated it is. it's also safe to be overdosed in case of an accidental spill/over treatment.
Reviewed in the United States on July 27, 2025 by mac

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