What are aquarium water conditioners?

Aquarium water conditioners are treatments that remove harmful substances like chlorine, chloramine, and heavy metals from tap water, making it safe for fish and other aquatic life.

Is a water conditioner necessary for an aquarium?

Yes. Unless you are using pre-conditioned water, aquarium water conditioners are essential for neutralizing harmful chemicals in tap water. Without them, fish can be exposed to toxins that may cause stress or illness.

What happens if you forget to put a water conditioner in your fish tank?

Without water conditioner, chlorine and chloramine in tap water can irritate fish gills, damage their protective slime coat, and even be fatal in high concentrations. It's important to treat water before adding it to the tank.

How long can you let the aquarium water conditioner sit before adding fish?

Most water conditioners work instantly, allowing fish to be added right away. However, some formulas may require a few minutes to fully neutralize harmful chemicals. Always follow the product's instructions for best results.

Aquarium & Fish Tank Water Conditioner & Dechlorinator - Page 3 (Free Shipping)

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Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 32-fl oz bottle slide 2 of 8

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Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 32-fl oz bottle

Rated 5 out of 5 stars

2

$31.89 Chewy Price

($1.00/fl oz) Price per Unit

$38.99 List Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 21 and Jul 26

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Dr. Tim's Aquatics Betta Waste-Away Water Conditioner, 4-fl oz bottle slide 2 of 5

Dr. Tim's Aquatics Betta Waste-Away Water Conditioner, 4-fl oz bottle slide 3 of 5

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Dr. Tim's Aquatics Betta Waste-Away Water Conditioner, 4-fl oz bottle

Rated 5 out of 5 stars

1

$11.79 Chewy Price

($2.95/fl oz) Price per Unit

$14.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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API Pond Ammo-Lock Pond Water Ammonia Detoxifier, 64-oz bottle slide 2 of 8

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API Pond Ammo-Lock Pond Water Ammonia Detoxifier, 64-oz bottle

Rated 4.8 out of 5 stars

17

$50.98 Chewy Price

($0.80/oz) Price per Unit

$71.48 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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Hydrospace PNS DeepCycle Fish Aquarium Substrate, Purple, 16-oz

$37.99 Chewy Price

($2.38/oz) Price per Unit

Autoship Price

Contains Live Feed

Free 1-3 day delivery on first-time orders
Free 365-day returns

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enha...

Rated 4.1 out of 5 stars

37

$3.99 Chewy Price

($0.40/ea) Price per Unit

$5.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fritz Casuarina Cones, 20 count

Rated 3 out of 5 stars

3

$12.99 Chewy Price

($0.65/ea) Price per Unit

$14.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Dr. Tim's Aquatics Betta Water Conditioner, 32-fl oz bottle

Rated 5 out of 5 stars

1

$8.08 Chewy Price

($0.26/fl oz) Price per Unit

$8.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Microbe-Lift Aquatic Stress Relief Aquarium Treatment, 16-oz bottle

Rated 4.5 out of 5 stars

2

$15.94 Chewy Price

($1.00/oz) Price per Unit

$17.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fluval Sea Calcium Aquarium Water Conditioner, 8-oz bottle

Rated 4.8 out of 5 stars

4

$8.50 Chewy Price

($1.07/oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Quick Start Freshwater & Saltwater Aquarium Nitrifying Bacteria, 32-fl oz bottle

Rated 4.3 out of 5 stars

32

$34.76 Chewy Price

($1.09/fl oz) Price per Unit

$47.98 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Betta Aquarium Water Conditioner, 1.7-fl oz bottle

Rated 4.6 out of 5 stars

34

$3.68 Chewy Price

($2.17/fl oz) Price per Unit

$5.98 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Aqueon Betta Bowl Plus Water Conditioner, 4-fl oz bottle

Rated 4.8 out of 5 stars

70

$5.46 Chewy Price

($1.37/fl oz) Price per Unit

$6.49 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics AquaCleanse Freshwater Aquarium Cleaner, 4-fl oz bottle

Rated 4.9 out of 5 stars

15

$8.29 Chewy Price

($2.08/oz) Price per Unit

$10.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Tetra Easy Balance Aquarium Water Conditioner, 3.38-oz bottle

Rated 4.6 out of 5 stars

17

$6.27 Chewy Price

($1.86/oz) Price per Unit

$7.29 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fritz RPM Elements Magnesium Aquarium Water Treatment, 1-gal bottle

Rated 5 out of 5 stars

5

$31.19 Chewy Price

($31.19/gl) Price per Unit

$38.49 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics AquaCleanse Koi Ponds & Water Gardens Cleaner, 128-fl oz bottle

Rated 2.3 out of 5 stars

3

$54.85 Chewy Price

($0.43/fl oz) Price per Unit

$56.99 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 21 and Jul 26

Dr. Tim's Aquatics Waste-Away Saltwater Aquarium Cleaner, 4-fl oz bottle

Rated 1.5 out of 5 stars

2

$13.29 Chewy Price

($3.33/oz) Price per Unit

$16.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Microbe-Lift Aquatic Turtle Rock & Substrate Cleaner, 4-oz bottle

Rated 3.8 out of 5 stars

9

$7.64 Chewy Price

($1.91/oz) Price per Unit

$8.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fluval Sea Iodine Aquarium Water Conditioner, 8-oz bottle

Rated 5 out of 5 stars

3

$8.99 Chewy Price

($1.13/oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics Betta One & Only Water Conditioner, 2-fl oz bottle

Rated 5 out of 5 stars

1

$13.41 Chewy Price

($6.71/fl oz) Price per Unit

$16.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Marine Complete Trace Aquarium Water Conditioner, 16-oz bottle

Rated 3 out of 5 stars

4

$12.98 Chewy Price

($0.82/oz) Price per Unit

$18.28 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Marine Quick Start Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.6 out of 5 stars

18

$19.99 Chewy Price

($1.25/fl oz) Price per Unit

$27.98 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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GloFish Betta Aquarium Water Conditioner, 2-fl oz bottle

$4.10 Chewy Price

($2.05/fl oz) Price per Unit

$6.19 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics First Defense Freshwater Aquarium Cleaner, 8-fl oz bottle

Rated 4.2 out of 5 stars

5

$14.99 Chewy Price

($1.88/fl oz) Price per Unit

$23.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Tetra SafeStart Plus for Freshwater Aquariums, 8.45-fl oz bottle

Rated 4.9 out of 5 stars

11

$18.07 Chewy Price

($2.14/fl oz) Price per Unit

$22.89 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Bundle and Save 5%

Bundle: Aqueon Betta Bowl Plus Water Conditioner + Betta Fish Food

Rated 5 out of 5 stars

1

$9.17 Chewy Price

$9.65 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics Reef Eco-Balance Marine Aquarium Cleaner, 4-fl oz bottle

Rated 5 out of 5 stars

3

$14.99 Chewy Price

($3.75/oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Laguna Water Prep Aquarium Water Maintenance Solution, 67.5-oz

$48.99 Chewy Price

($0.73/oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders
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Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 16-fl oz

Rated 5 out of 5 stars

1

$30.99 Chewy Price

($1.94/oz) Price per Unit

Autoship Price

Contains Live Feed

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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

Rated 4.3 out of 5 stars

43

$2.29 Chewy Price

($0.07/fl oz) Price per Unit

$4.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Goldfish Protect Aquarium Water Conditioner, 4-fl oz bottle

Rated 4.8 out of 5 stars

27

$4.28 Chewy Price

($1.07/fl oz) Price per Unit

$5.98 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Dr. Tim's Aquatics Marine Waste-Away Gel Water Conditioner, Medium: 50-gal, 2 count

$29.98 Chewy Price

($14.99/ea) Price per Unit

$38.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Stress Zyme Freshwater & Saltwater Aquarium Cleaning Solution, 32-fl oz bottle

Rated 4.9 out of 5 stars

14

$41.98 Chewy Price

($1.32/fl oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Seapora Betta Water, 33.8-oz

Rated 4.3 out of 5 stars

12

$5.72 Chewy Price

($0.17/oz) Price per Unit

$5.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics Clear-Up Freshwater Aquarium Cleaner, 4-fl oz bottle

Rated 4.8 out of 5 stars

4

$12.99 Chewy Price

($3.25/oz) Price per Unit

$15.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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AquaForest Component 1+2+3+ Aquarium Solution, 3.96-gal

Rated 5 out of 5 stars

2

$62.69 Chewy Price

($15.84/gl) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Aquarium & Fish Tank Water Conditioner & Dechlorinator

Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 32-fl oz bottle

Dr. Tim's Aquatics Betta Waste-Away Water Conditioner, 4-fl oz bottle

API Pond Ammo-Lock Pond Water Ammonia Detoxifier, 64-oz bottle

Hydrospace PNS DeepCycle Fish Aquarium Substrate, Purple, 16-oz

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enha...

Fritz Casuarina Cones, 20 count

Dr. Tim's Aquatics Betta Water Conditioner, 32-fl oz bottle

Microbe-Lift Aquatic Stress Relief Aquarium Treatment, 16-oz bottle

Fluval Sea Calcium Aquarium Water Conditioner, 8-oz bottle

API Quick Start Freshwater & Saltwater Aquarium Nitrifying Bacteria, 32-fl oz bottle

API Betta Aquarium Water Conditioner, 1.7-fl oz bottle

Aqueon Betta Bowl Plus Water Conditioner, 4-fl oz bottle

Dr. Tim's Aquatics AquaCleanse Freshwater Aquarium Cleaner, 4-fl oz bottle

Tetra Easy Balance Aquarium Water Conditioner, 3.38-oz bottle

Fritz RPM Elements Magnesium Aquarium Water Treatment, 1-gal bottle

Dr. Tim's Aquatics AquaCleanse Koi Ponds & Water Gardens Cleaner, 128-fl oz bottle

Dr. Tim's Aquatics Waste-Away Saltwater Aquarium Cleaner, 4-fl oz bottle

Microbe-Lift Aquatic Turtle Rock & Substrate Cleaner, 4-oz bottle

Fluval Sea Iodine Aquarium Water Conditioner, 8-oz bottle

Dr. Tim's Aquatics Betta One & Only Water Conditioner, 2-fl oz bottle

API Marine Complete Trace Aquarium Water Conditioner, 16-oz bottle

API Marine Quick Start Aquarium Water Conditioner, 16-fl oz bottle

GloFish Betta Aquarium Water Conditioner, 2-fl oz bottle

Dr. Tim's Aquatics First Defense Freshwater Aquarium Cleaner, 8-fl oz bottle

Tetra SafeStart Plus for Freshwater Aquariums, 8.45-fl oz bottle

Dr. Tim's Aquatics Reef Eco-Balance Marine Aquarium Cleaner, 4-fl oz bottle

Laguna Water Prep Aquarium Water Maintenance Solution, 67.5-oz

Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 16-fl oz

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

API Goldfish Protect Aquarium Water Conditioner, 4-fl oz bottle

Dr. Tim's Aquatics Marine Waste-Away Gel Water Conditioner, Medium: 50-gal, 2 count

API Stress Zyme Freshwater & Saltwater Aquarium Cleaning Solution, 32-fl oz bottle

Seapora Betta Water, 33.8-oz

Dr. Tim's Aquatics Clear-Up Freshwater Aquarium Cleaner, 4-fl oz bottle

AquaForest Component 1+2+3+ Aquarium Solution, 3.96-gal

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