Fish Tank Water Conditioners

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API Stress Coat Aquarium Water Conditioner, 16-oz bottle

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Rated 4.8595 out of 5 stars
121
$5.56Chewy Price
$13.49List Price
$5.28Autoship Price

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Nature's Ocean Nutri-SeaWater Natural Live Ocean Aquarium Saltwater, 4.4-gal jug
Rated 3.9474 out of 5 stars
19
$24.99Chewy Price
$23.74Autoship Price

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API Tap Water Conditioner, 16-oz bottle

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Rated 4.875 out of 5 stars
56
$5.83Chewy Price
$10.29List Price
$5.54Autoship Price

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Tetra AquaSafe Plus Freshwater & Marine Aquarium Water Conditioner, 16.9-oz bottle

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Rated 4.8816 out of 5 stars
76
$6.99Chewy Price
$11.09List Price
$6.64Autoship Price

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API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner, 16-oz bottle

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Rated 4.8696 out of 5 stars
46
$8.08Chewy Price
$20.99List Price
$7.68Autoship Price

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API Quick Start Freshwater & Saltwater Aquarium Water Treatment, 16-oz bottle

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Rated 4.2593 out of 5 stars
27
$9.26Chewy Price
$22.39List Price
$8.80Autoship Price

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Tetra EasyBalance Plus Freshwater Aquarium Water Conditioner, 16.9-oz bottle

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Rated 4.6486 out of 5 stars
37
$4.89Chewy Price
$11.09List Price
$4.65Autoship Price

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API Pond Algaefix Algae Control Solution, 1-gal bottle

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Rated 4.3889 out of 5 stars
90
$63.99Chewy Price
$89.59List Price
$60.79Autoship Price

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Aqueon Betta Bowl Plus Water Conditioner, 4-oz bottle
Rated 4.5217 out of 5 stars
23
$5.95Chewy Price
$5.99List Price
$5.65Autoship Price

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API Ammo-Lock Freshwater & Saltwater Aquarium Ammonia Detoxifier, 16-oz bottle

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Rated 3.4615 out of 5 stars
13
$8.81Chewy Price
$16.29List Price
$8.37Autoship Price

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Aqueon Tap Water Conditioner, 16-oz bottle

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Rated 4.7143 out of 5 stars
35
$7.98Chewy Price
$13.49List Price
$7.58Autoship Price

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Tetra SafeStart Plus Concentrated Freshwater Aquarium Bacteria, 3.38-oz

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Rated 4.75 out of 5 stars
4
$8.99Chewy Price
$10.09List Price
$8.54Autoship Price

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Tetra Pond Sludge Reducer with Clear-Zyme Technology Water Conditioner, 4 count
Rated 4.2143 out of 5 stars
14
$7.73Chewy Price
$11.09List Price
$7.34Autoship Price

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Activ-Betta Bio-Activ Live Aqueous Solution Betta Water, 33.8-oz bottle

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Rated 3.875 out of 5 stars
8
$8.95Chewy Price
$8.50Autoship Price

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Fluval Cycle Biological Booster Water Conditioner, 16.9-oz bottle

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Rated 4.6875 out of 5 stars
16
$16.99Chewy Price
$22.99List Price
$16.14Autoship Price

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API Pond Stress Coat Water Conditioner, 1-gal bottle

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Rated 5 out of 5 stars
20
$67.99Chewy Price
$95.19List Price
$64.59Autoship Price

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Fritz Aquatics Mardel Maracyn Water Treatment, 24 count

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$24.58Chewy Price
$24.99List Price

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Dr. Tim's Aquatics Ammonium Chloride Solution for Cycling Aquariums, 2-oz bottle
Rated 4.56 out of 5 stars
25
$4.69Chewy Price
$4.46Autoship Price

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Fritz Aquatics Fritz Zyme 7 Freshwater Nitrifying Bacteria for Aquariums, 32-oz bottle

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Rated 5 out of 5 stars
7
$13.96Chewy Price
$15.99List Price

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Tetra AquaSafe Aquarium Water Conditioner, 1.69-oz bottle
Rated 5 out of 5 stars
14
$2.48Chewy Price
$2.99List Price
$2.36Autoship Price

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API Tap Water Conditioner Aquarium Water Conditioner, 32-oz bottle

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Rated 4.6667 out of 5 stars
6
$19.42Chewy Price
$20.99List Price
$18.45Autoship Price

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Aqueon Shrimp Essentials Shrimp & Crayfish Freshwater Aquarium Trace Minerals, 4-oz bottle
Rated 4.5 out of 5 stars
6
$4.56Chewy Price
$9.99List Price
$4.33Autoship Price

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Tetra AquaSafe Aquarium Water Conditioner, 8.45-oz bottle
Rated 5 out of 5 stars
2
$5.89Chewy Price
$9.09List Price
$5.60Autoship Price

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API Pond Chlorine & Heavy Metal Neutralizer, 32-oz bottle

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Rated 5 out of 5 stars
7
$24.59Chewy Price
$34.49List Price
$23.36Autoship Price

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Aqueon Aquarium Water Clarifier, 16-oz bottle
Rated 3.6667 out of 5 stars
3
$12.49Chewy Price
$13.49List Price
$11.87Autoship Price

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Fluval Biological Cleaner Water Conditioner, 8.4-oz bottle

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Rated 4.6 out of 5 stars
5
$10.99Chewy Price
$15.99List Price
$10.44Autoship Price

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Tetra Pond AquaSafe Tap Water Conditioner, 101.4-oz bottle

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Rated 4.8333 out of 5 stars
6
$45.91Chewy Price
$73.99List Price
$43.61Autoship Price

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API Betta Aquarium Water Conditioner, 1.7-oz bottle
Rated 4.1 out of 5 stars
10
$2.87Chewy Price
$5.09List Price
$2.73Autoship Price

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Aqueon Ammonia Neutralizer Water Conditioner, 16-oz bottle

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Rated 4.5 out of 5 stars
10
$8.39Chewy Price
$13.49List Price
$7.97Autoship Price

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API Goldfish Aquarium Cleaner, 4-oz bottle
Rated 3.375 out of 5 stars
8
$3.99Chewy Price
$5.59List Price
$3.79Autoship Price

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GloFish Aquarium Water Conditioner, 4-oz bottle
Rated 5 out of 5 stars
3
$4.24Chewy Price
$7.19List Price
$4.03Autoship Price

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API Pond Accu-Clear Clarifier, 16-oz bottle

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Rated 4.2308 out of 5 stars
13
$14.50Chewy Price
$17.69List Price
$13.78Autoship Price

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Fluval Ammonia Remover Nylon Filter Bags, 3 count
Rated 4.75 out of 5 stars
4
$6.38Chewy Price
$10.49List Price
$6.06Autoship Price

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API Quick Start Freshwater & Saltwater Aquarium Nitrifying Bacteria, 32-oz bottle
Rated 5 out of 5 stars
1
$30.99Chewy Price
$43.89List Price
$29.44Autoship Price

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Fluval Total Protection Water Conditioner, 16.9-oz bottle

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Rated 4.6 out of 5 stars
5
$9.68Chewy Price
$10.49List Price
$9.20Autoship Price

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Fritz Complete Full-Spectrum Aquarium Water Conditioner, 16-oz bottle

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$10.78Chewy Price
$13.97List Price

FREE 1-3 day shipping over $49

Fish Tank Water Conditioners

Fish water conditioners are easy to use and provide a quick solution for maintaining ideal aquarium water and a stress-free environment for your fish. A good fish tank water conditioner gives you an immediate solution to cloudy or murky water conditions that can cause all sorts of stressors for your fish, including low visibility. When you use tap water to fill up your tank after water changes, it can cause chlorine, chloramines and traces of heavy metals to taint the water. The best fish water conditioners will remove these elements from the aquarium to keep your fish happy and healthy. API Stress Coat with Pump Aquarium Water Conditioner is a helpful conditioner for reducing fish stress and healing damaged tissue. The chlorine and chloramines in tap water can damage fish tissue and cause your fish to have breathing difficulties. This potent fish tank water conditioner contains soothing aloe vera that is scientifically proven to reduce fish stress. It's also great to use when starting a new aquarium, adding or changing water, and when adding new fish. For maintaining the overall health and condition of your tank, try Tetra EasyBalance Plus Freshwater Aquarium Water Conditioner. Fish waste, uneaten food and other organic matter can cause ammonia, nitrates and other toxins to develop in the water, which creates an unhealthy environment that will lead to frequent water changes. This aquarium water conditioner regulates the pH levels and alkalinity to reduce nitrates and phosphates. It breaks down organic pollutants, plus it contains vitamins and minerals for maximum aquarium health. Seachem Prime Marine and Freshwater Conditioner removes chlorine and chloramine from the tank and changes ammonia into a safe, non-toxic form that can be removed by the tank's biofilter. It also strips out any heavy metals from tap water. This fish water conditioner can be used when you start a tank or when adding or replacing water. The Fluval Cycle Biological Booster Water Conditioner contains pure, safe beneficial bacterial colonies that quickly consume toxic ammonia and nitrites in the water. It's safe for aquarium plants, animals and humans. Whether you have to change the water in your tank or get rid of the murk that causes fish stress, you'll find the best fish water conditioners right here at Chewy.

Related Categories: Fish Algaecides and Water Clarity, Fish pH Treatments, Aquarium Plant Care, Fish Salt and Minerals, Fish Water Test Kits, Fish Water Care

Frequently Asked Questions about Fish Tank Water Conditioners

Do I need water conditioner for my aquarium?

You do need water conditioner for your aquarium in order to remove harmful chemicals from the tap water you use to fill it. Chlorine and chloramine found in tap water can be toxic to fish, and tap water may contain chemicals and trace elements like metals that can harm your fish, as well. Water conditioners help neutralize these dangers and create a safe environment for your fish.

What does water conditioner do for fish tanks?

What water conditioner does for fish tanks is make the water safer for fish. Fish tank water conditioners are made to neutralize harmful chemicals like chlorine and metals that are present in most tap water.

When should I add water conditioner to my aquarium?

You should add water conditioner to your aquarium when you first fill it up and at least 24 hours before you add your fish. You should also add water conditioner whenever you add new water to the tank as part of cleaning or regular maintenance. Closely follow the directions on the water conditioner you are using or consult a professional aquarist for guidance.

What are the best aquarium water conditioners?

The best aquarium water conditioners are complete conditioners made to neutralize chlorine, ammonia and metals and buffer the pH for a healthy aquatic environment. A good water conditioner will also protect your fish's slime coat. Be sure to choose a water conditioner that is safe and appropriate for the type of tank and fish you have.