Fish Tank Water Conditioners

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API Tap Water Conditioner, 16-oz bottle

Rated 4.7619 out of 5 stars
63
$7.98Chewy Price
$11.28List Price
$7.58Autoship Price

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

Rated 4.859 out of 5 stars
78
$6.99Chewy Price
$11.09List Price
$6.64Autoship Price

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API Stress Coat Aquarium Water Conditioner, 16-oz bottle

Rated 4.797 out of 5 stars
133
$10.48Chewy Price
$14.78List Price
$9.96Autoship Price

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Aqueon Tap Water Conditioner, 16-oz bottle

Rated 4.7297 out of 5 stars
37
$6.82Chewy Price
$13.99List Price
$6.48Autoship Price

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

Rated 4.4146 out of 5 stars
41
$4.99Chewy Price
$11.09List Price
$4.74Autoship Price

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

Rated 4.8182 out of 5 stars
11
$15.55Chewy Price
$15.99List Price

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API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner, 4-oz bottle

Rated 4.8824 out of 5 stars
51
$5.78Chewy Price
$8.28List Price
$5.49Autoship Price

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API Quick Start Freshwater & Saltwater Aquarium Water Treatment, 4-oz bottle

Rated 4.2258 out of 5 stars
31
$8.48Chewy Price
$11.98List Price
$8.06Autoship Price

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

Rated 4.5 out of 5 stars
2
$13.97Chewy Price

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Python Multi Purpose Aquarium Water Conditioner, 67.6-oz bottle

$19.84Chewy Price
$65.99List Price
$18.85Autoship Price

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Tetra AquaSafe Aquarium Water Conditioner, 8.45-oz bottle

Rated 5 out of 5 stars
2
$3.50Chewy Price
$9.09List Price
$3.32Autoship Price

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Bundle: Betta Fish Starter Kit - Tetra LED Cube Kit Fish Aquarium, GloFish Artificial Plant, Te...

$65.09Chewy Price
$72.64List Price

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Aqueon Ammonia Neutralizer Water Conditioner, 16-oz bottle

Rated 4.5455 out of 5 stars
11
$6.99Chewy Price
$13.99List Price
$6.64Autoship Price

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Aqueon Aquarium Water Clarifier, 16-oz bottle

Rated 3.6667 out of 5 stars
3
$8.38Chewy Price
$13.99List Price
$7.96Autoship Price

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Dr. Tim's Aquatics Re-Fresh Reef Tank Revitalizer, 8-oz bottle

Rated 3 out of 5 stars
2
$21.46Chewy Price
$33.99List Price
$20.39Autoship Price

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SunGrow Betta Fish Indian Almond Leaves, Water Conditioner & Tank Treatment for Freshwater Aqua...

Rated 4.4565 out of 5 stars
46
$8.95Chewy Price
$9.99List Price
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Fluval Ammonia Remover Nylon Filter Bags, 3 count

Rated 4.75 out of 5 stars
4
$5.99Chewy Price
$11.99List Price
$5.69Autoship Price

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Kordon NovAqua Plus Aquarium Water Conditioner, 8-oz bottle

Rated 3.8571 out of 5 stars
7
$10.88Chewy Price
$10.34Autoship Price

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API Aqua Essential Aquarium Treatment, 16-oz bottle

$14.32Chewy Price
$21.78List Price
$13.60Autoship Price

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Fritz Algae Clean Out Aquarium Water Treatment, 16-oz bottle

Rated 5 out of 5 stars
4
$12.99Chewy Price

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Microbe-Lift Special Blend Salt & Fresh Water Eco System in a Bottle, 8.5-oz bottle

Rated 4.5 out of 5 stars
8
$12.36Chewy Price
$12.96List Price
$11.74Autoship Price

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Tetra Pond AquaSafe Tap Water Conditioner, 101.4-oz bottle

Rated 4.8571 out of 5 stars
7
$31.99Chewy Price
$73.99List Price
$30.39Autoship Price

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API Tap Water Conditioner Aquarium Water Conditioner, 64-oz bottle

Rated 4.7143 out of 5 stars
7
$27.98Chewy Price
$39.28List Price
$26.58Autoship Price

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Bundle: Fish Starter Kit - Frisco Betta Aquarium, Aqueon Betta Food, Water Care, Heater

$43.96Chewy Price
$49.44List Price

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Aqueon Betta Bowl Plus Water Conditioner, 4-oz bottle

Rated 4.5417 out of 5 stars
24
$3.60Chewy Price
$5.99List Price
$3.42Autoship Price

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Aquascape Pond Foam Free Water Treatment, 8-oz bottle

$15.98Chewy Price

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Instant Ocean Reef Accelerator All-In-One Reef Supplement, 8.45-oz bottle

Rated 4 out of 5 stars
4
$8.09Chewy Price
$7.69Autoship Price

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Fluval Total Protection Water Conditioner, 16.9-oz bottle

Rated 4.6 out of 5 stars
5
$10.57Chewy Price
$10.04Autoship Price

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Coralife Biocube UV Sterilizer Lamp Fish Water Conditioner, 5 watts

$64.99Chewy Price

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Dr. Tim's Aquatics Reef Eco-Balance Marine Aquarium Cleaner, 16-oz bottle

$22.77Chewy Price
$24.39List Price

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Fritz Clarifier Aquarium Water Conditioner, 16-oz bottle

Rated 4 out of 5 stars
1
$10.48Chewy Price
$19.99List Price

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Lifegard Aquatics Water Conditioner & Stress Reliever Fish Pond Treatment, 32-oz bottle

$18.90Chewy Price

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Tetra AquaSafe Aquarium Water Conditioner, 1.69-oz bottle

Rated 5 out of 5 stars
14
$2.99Chewy Price
$2.84Autoship Price

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API Goldfish Aquarium Cleaner, 4-oz bottle

Rated 3.375 out of 5 stars
8
$4.28Chewy Price
$5.98List Price
$4.07Autoship Price

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Microbe-Lift Exotic Betta Care Aquarium Treatment, 1-oz bottle

$3.35Chewy Price
$3.18Autoship Price

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Bundle: Fish Starter Kit - Frisco Betta Aquarium, Aqueon Betta Food, Heater, Conditioner, Water...

$49.59Chewy Price
$55.44List Price

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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.