API Pond Chlorine & Heavy Metal Neutralizer

Rated 5 out of 5 stars


Selected: Size:


Selected: Size:

$26.99Chewy Price
$37.78Chewy Price
$25.64Autoship Price
Autoship (Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

In Stock
FREE 1-3 day delivery over $35

About This Item


  • Designed to remove potentially harmful disinfectants like chlorine from tap water and well water.
  • Formulated to neutralize chloramines which can be harmful to pond life.
  • Removing disinfectants can help protect your finned friends.
  • Detoxifies harmful heavy metals like zinc, lead and copper.
  • 1 ounce treats 600 gallons of pond water

See More



Play Video: Learn More About API From Our Team of Experts
Learn More About API From Our Team of Experts

Special Note
  • 16-oz bottle treats up to 9600 gallons.
  • 32-oz bottle treats up to 19,200 gallons.

Frequently Bought Together

API Pond Simply Clear Pond Water Clarifier, 32-oz bottle
Rated 4.5263 out of 5 stars
$26.96Chewy Price

Save 35% on Autoship

API Pond Salt, 9.6-lb bottle
Rated 4.6667 out of 5 stars
$22.99Chewy Price

Save 35% on Autoship

Total Price: $76.94

Compare Similar Items

Customer Rating
Rated 5 out of 5 stars
Rated 5 out of 5 stars
Rated 4.875 out of 5 stars
$26.99Chewy Price
$21.01Chewy Price
$25.46Chewy Price
$13.60Chewy Price
$39.98Chewy Price
$25.64Chewy Price
$24.19Chewy Price
$12.92Chewy Price
Fish TypeKoi & Pond FishKoi & Pond FishKoi & Pond FishKoi & Pond FishKoi & Pond Fish
Aquarium TypePondPondPondPondPond

Questions & Answers

3 Customer Questions

We have heavy iron in our well water since we went deeper with a new well. Our pond water is very brown since a water change. Will this remove the iron and will be safe for our cat to out of the pond after using?
Answer by ChewySep 15, 2021
This treatment is designed for ornamental pond use only. It is safe for fish and pond plants, as well as surrounding wildlife and pets, when used as directed.

How much to add per gallon of freshwater added
Answer by ChewyJun 23, 2021
For complete dosing information click on the "Instructions" tab, next to the "Description" tab, just below the product pictures.

When adding water to an existing pond do I base the amount of neutralizer on the amount of water I'm adding to the pond or to the total amount of water the pond holds?
Answer by ChewyMay 14, 2021
Treat for the amount of water you are adding, whether it is for top off from evaporation or when changing water. To treat the volume of water being added, dose with 5 ml (1 teaspoon) for every 100 gallons (378L) or 1/4 cup (60ml) for each 1,200 gallons (4,542L). To remove chloramine, double the dose.

ReviewsWrite a Review

Rated 5 out of 5 stars
9 Ratings
Would recommend to a friend

9 Customer Reviews

Rated 5 out of 5 stars
By Pat on May 25, 2023

Chewy has top notch products !

This declorinator is very effective. Never used this brand before but I will reorder this product.

Rated 5 out of 5 stars
By Linda on May 22, 2022

Keep water in your pond clean from chlorine

This product works very will for fresh water fish ponds.

Rated 5 out of 5 stars
By Insta on Aug 20, 2021

No issues whatsoever

No issues with this product. It’s actually great! My fish are happy no burnt gills, they are happy Seems to work instantly like stated on label. I have bad tap water in my area, can smell the chlorine in it. And with this product the water seems to be fine for the fish. I have beautiful koi that only deserve the best and this seems to be it! Use this anytime you put tap water in your pond! You can tell the difference if you do or dont! The fish are happy when this product is used with tap water, compared to not active or happy if you dont! Use it! Its highly recommended!

Rated 5 out of 5 stars
By Kascollies on Nov 6, 2020


I have used it for many years to make my tap water safe for my aquariums

Rated 5 out of 5 stars
By jeno on Apr 11, 2020

My go to product

I have used this for years. Great product. Never upsets the fish easy to measure and use in my 20 gal tank

Rated 5 out of 5 stars
By Fabian on Sep 24, 2018

Great stuff

Works really good i put it in my 2000 gallon koi pond.

Rated 5 out of 5 stars
By rridgeback55 on Sep 5, 2018

AOK!AOK!AOK!about this product!

Must be working. Fish are very healthy, and lively! I do not know what else to say!

Rated 5 out of 5 stars
By jerri on Feb 9, 2018


Excellent packaging. Sealed for protective spillage

Rated 5 out of 5 stars
By Woodchuck on Jun 1, 2017

Great Product at a great price

Was using a much more expensive product for years. Decided to try API and the results are identical.