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API

API Fishcare 52Q API TAP Aquarium Water Conditioner 32-Ounce Bottle

  • Based on 3,120 reviews
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Availability: In Stock.
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Arrives Friday, Jun 19
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Size: 32-Ounce


Style: Aquarium Treatment


Features

  • Contains one (1) API TAP WATER CONDITIONER Aquarium Water Conditioner 32-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: 32 Fluid Ounces


Item Weight: 1.2 Pounds


Item Form: Liquid


Number of Packs: 1


Product Dimensions ‏ : ‎ 14.3 x 10.4 x 7.6 inches; 1.2 Pounds


Item model number ‏ : ‎ 52Q


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ March 11, 2018


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #6,802 in Pet Supplies (See Top 100 in Pet Supplies) #38 in Aquarium Water Treatments


#38 in Aquarium Water Treatments:


Customer Reviews: 4.7 4.7 out of 5 stars (3,517)


Brand Name: API


Manufacturer: Mars Fishcare


UPC: 317163170526


Global Trade Identification Number: 26


Model Number: 52Q


Manufacturer Part Number: 52Q


Unit Count: 1 Count


Item Type Name: Aquarium Water Conditioner


Liquid Volume: 32 Fluid Ounces


Item Weight: 1.2 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: Friday, Jun 19

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Chlorine remover for fish tnk
Size: 32-Ounce Style: Aquarium Treatment
As described, great quality and price
Reviewed in the United States on May 22, 2026 by colleen espinosa

  • Works Perfectly, Easy to Use
Size: 32-Ounce Style: Aquarium Treatment
This water conditioner is fantastic! It instantly neutralizes chlorine and chloramines in tap water, making it completely safe for my fish. I’ve noticed that my fish are calmer and healthier during water changes since I started using it. The bottle is easy to measure and pour, and a little goes a long way, so it lasts quite a while. It’s a reliable product that gives me peace of mind every time I top off or change the water. Definitely a must-have for any freshwater aquarium owner! ... show more
Reviewed in the United States on February 9, 2026 by Melissa Gaudet

  • Excellent water treatment
Size: 32-Ounce Style: Aquarium Treatment
I love this product, this size was a major bonus. Very good at treating tap water, making it safe and healthy for our fish. It doesn't have an odor like prime does. I always use this for water changes.
Reviewed in the United States on May 2, 2026 by Patricia Parker

  • Pricey but works great
Size: 32-Ounce Style: Aquarium Treatment
Pricey. I liked the old gallon Amazon used to sell. It works great though
Reviewed in the United States on May 8, 2026 by Landon A

  • Better to buy this way u will get many uses out of it
Size: 32-Ounce Style: Aquarium Treatment
Great product I have use before so it was just better in bulk
Reviewed in the United States on April 15, 2026 by Desmond

  • Pleased
Size: 32-Ounce Style: Aquarium Treatment
API has good products. Water conditioner is a bit smelly.lve had no problem after switching from prime. API water conditioner is concentrated beware
Reviewed in the United States on February 9, 2026 by Gene E

  • Big bottle.
Size: 32-Ounce Style: Aquarium Treatment
Big bottle. Good value.
Reviewed in the United States on May 2, 2026 by Panda

  • Works
Size: 32-Ounce Style: Aquarium Treatment
Works well
Reviewed in the United States on May 24, 2026 by BayAreaTexan

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