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 2 (Free Shipping)

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SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enhancers, 10 count slide 2 of 6

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enhancers, 10 count slide 3 of 6

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enhancers, 10 count slide 4 of 6

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enhancers, 10 count slide 5 of 6

SunGrow Water Conditioner Balls for Betta, Tropical Fish Tank Decorations & Aquarium Water Enhancers, 10 count slide 6 of 6

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

Rated 4.2 out of 5 stars

38

$3.99 Chewy Price

($0.40/ea) Price per Unit

$5.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Slide 1 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle slide 2 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle slide 3 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle slide 4 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle slide 5 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle slide 6 of 6

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle

Rated 4.6 out of 5 stars

9

$9.99 Chewy Price

($0.63/oz) Price per Unit

$19.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Slide 1 of 2

Activ-Betta Bio-Activ Live Aqueous Solution Betta Water, 1-gal jug slide 2 of 2

Activ-Betta Bio-Activ Live Aqueous Solution Betta Water, 1-gal jug

Rated 4.2 out of 5 stars

46

$10.98 Chewy Price

($10.98/gl) Price per Unit

$15.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Slide 1 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers pH, 50 count slide 2 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers pH, 50 count slide 3 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers pH, 50 count slide 4 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers pH, 50 count slide 5 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers pH, 50 count slide 6 of 6

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers p...

Rated 4.4 out of 5 stars

33

$7.97 Chewy Price

($0.16/ea) Price per Unit

$9.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fritz Zyme 9 Saltwater Nitrifying Bacteria for Aquariums, 32-fl oz bottle

Rated 4.5 out of 5 stars

34

$21.99 Chewy Price

($0.69/fl oz) Price per Unit

$24.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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Tetra AquaSafe Aquarium Water Conditioner, 1.69-fl oz bottle

Rated 5 out of 5 stars

44

$5.52 Chewy Price

($3.27/fl oz) Price per Unit

$6.29 List Price

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Free 1-3 day delivery on first-time orders over $35
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API Pond Accu-Clear Clarifier, 32-fl oz bottle

Rated 4.5 out of 5 stars

102

$25.98 Chewy Price

($0.82/fl oz) Price per Unit

$36.48 List Price

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Free 1-3 day delivery on first-time orders over $35
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Aqueon Shrimp Tank Plus Freshwater Aquarium Water Conditioner, 4-fl oz bottle

Rated 4.7 out of 5 stars

27

$3.49 Chewy Price

($0.88/fl oz) Price per Unit

$9.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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DrTim's Aquatics One & Only Live Nitrifying Bacteria for Freshwater Aquariums, 4-fl oz bottle

Rated 3.5 out of 5 stars

62

$24.99 Chewy Price

($6.25/fl oz) Price per Unit

$39.99 List Price

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

Rated 4.4 out of 5 stars

35

$5.14 Chewy Price

($1.29/fl oz) Price per Unit

$5.98 List Price

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Free 1-3 day delivery on first-time orders over $35
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API Aquarium Start-Up Pack

Rated 4.7 out of 5 stars

19

$6.99 Chewy Price

$8.28 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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SunGrow Mini Freshwater Indian Almond Leaves Aquarium Water Conditioner for Betta Fish & Shrimp...

Rated 4.3 out of 5 stars

51

$7.93 Chewy Price

($0.16/ea) Price per Unit

$9.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fritz RPM Elements Magnesium Aquarium Water Treatment, 1-gal bottle

Rated 5 out of 5 stars

6

$38.49 Chewy Price

($38.49/gl) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders
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Microbe-Lift PL GEL Filter Pad Bacterial Inoculant, 16-oz bottle

Rated 5 out of 5 stars

6

$20.05 Chewy Price

($1.26/oz) Price per Unit

$24.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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DrTim's Aquatics Axolotl Waste-Away Water Conditioner, 4-fl oz bottle

Rated 2.8 out of 5 stars

4

$12.96 Chewy Price

($3.24/fl oz) Price per Unit

$14.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Aqueon AquaPacs Aquarium Ammonia Reducer, 12 pack, 10-gal

Rated 4.6 out of 5 stars

18

$9.52 Chewy Price

($0.80/ea) Price per Unit

$16.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Fluker's Soaking Salt Hermit Crab Conditioner, 2.4-fl oz bottle

Rated 4.7 out of 5 stars

36

$4.63 Chewy Price

($1.93/fl oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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DrTim's Aquatics AquaCleanse Freshwater Aquarium Cleaner, 4-fl oz bottle

Rated 4.8 out of 5 stars

25

$6.99 Chewy Price

($1.75/oz) Price per Unit

$10.99 List Price

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

Rated 3 out of 5 stars

2

$4.47 Chewy Price

($1.12/oz) Price per Unit

$5.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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ASF Alkalinity & pH Booster Aquarium Treatment, 2.2-lb bottle

$17.99 Chewy Price

($8.18/lb) Price per Unit

$21.99 List Price

Autoship Price

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

Rated 4.8 out of 5 stars

33

$10.98 Chewy Price

($0.69/fl oz) Price per Unit

$15.48 List Price

Autoship Price

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

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DrTim's Aquatics AquaCleanse Koi Ponds & Water Gardens Cleaner, 16-fl oz bottle

Rated 2.3 out of 5 stars

3

$16.59 Chewy Price

($1.04/oz) Price per Unit

$20.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Microbe-Lift Gravel & Substrate Cleaner, 16-oz bottle

Rated 5 out of 5 stars

4

$15.24 Chewy Price

($0.96/oz) Price per Unit

$19.99 List Price

Autoship Price

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

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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DrTim's Aquatics Axolotl Water Conditioner, 32-fl oz bottle

Rated 2.6 out of 5 stars

5

$8.40 Chewy Price

($0.27/fl oz) Price per Unit

$8.99 List Price

Autoship Price

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

Aqueon AquaPacs Aquarium Sludge Remover, 12 pack, 10-gal

Rated 4.2 out of 5 stars

12

$11.87 Chewy Price

($0.99/ea) Price per Unit

$16.99 List Price

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Free 1-3 day delivery on first-time orders over $35
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DrTim'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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API Aquarium Starter Kit

Rated 4.9 out of 5 stars

10

$31.38 Chewy Price

$43.48 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

72

$6.99 Chewy Price

($1.75/fl oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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AquaZen Aquarium Water Conditioner - Dechlorinator, 4.06-fl oz bottle

Rated 5 out of 5 stars

2

$6.99 Chewy Price

($1.73/fl oz) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Microbe-Lift Xtreme Aquarium Water Treatment, 8-oz bottle

Rated 4.7 out of 5 stars

10

$11.22 Chewy Price

($1.41/oz) Price per Unit

$12.99 List Price

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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

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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

$7.20 Chewy Price

($0.90/oz) Price per Unit

$8.50 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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DrTim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums, 2-fl oz bottle

Rated 4 out of 5 stars

36

$17.99 Chewy Price

($9.00/fl oz) Price per Unit

$27.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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API Pond Ammo-Lock Pond Water Ammonia Detoxifier, 16-oz bottle

Rated 4.8 out of 5 stars

17

$15.70 Chewy Price

($0.99/oz) Price per Unit

$20.98 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Python Multi Purpose Bio-Support Aquarium Water Care, 4-fl oz bottle

Rated 3.6 out of 5 stars

5

$7.99 Chewy Price

($2.00/fl oz) Price per Unit

Autoship Price

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

Aquarium & Fish Tank Water Conditioner & Dechlorinator

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

Microbe-Lift Nite Out II Marine Aquarium Water Treatment, 16-oz bottle

Activ-Betta Bio-Activ Live Aqueous Solution Betta Water, 1-gal jug

SunGrow Mini Indian Almond Leaves Pleco & Shrimp Food, Aquarium Water Conditioner that Lowers p...

Fritz Zyme 9 Saltwater Nitrifying Bacteria for Aquariums, 32-fl oz bottle

Tetra AquaSafe Aquarium Water Conditioner, 1.69-fl oz bottle

API Pond Accu-Clear Clarifier, 32-fl oz bottle

Aqueon Shrimp Tank Plus Freshwater Aquarium Water Conditioner, 4-fl oz bottle

DrTim's Aquatics One & Only Live Nitrifying Bacteria for Freshwater Aquariums, 4-fl oz bottle

API Goldfish Aquarium Cleaner, 4-fl oz bottle

API Aquarium Start-Up Pack

SunGrow Mini Freshwater Indian Almond Leaves Aquarium Water Conditioner for Betta Fish & Shrimp...

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

Microbe-Lift PL GEL Filter Pad Bacterial Inoculant, 16-oz bottle

DrTim's Aquatics Axolotl Waste-Away Water Conditioner, 4-fl oz bottle

Aqueon AquaPacs Aquarium Ammonia Reducer, 12 pack, 10-gal

Fluker's Soaking Salt Hermit Crab Conditioner, 2.4-fl oz bottle

DrTim's Aquatics AquaCleanse Freshwater Aquarium Cleaner, 4-fl oz bottle

Aqueon Betta Water Renewal Conditioner, 4-oz bottle

ASF Alkalinity & pH Booster Aquarium Treatment, 2.2-lb bottle

API Marine Stress Coat Saltwater Aquarium Water Conditioner, 16-fl oz bottle

DrTim's Aquatics AquaCleanse Koi Ponds & Water Gardens Cleaner, 16-fl oz bottle

Microbe-Lift Gravel & Substrate Cleaner, 16-oz bottle

Fritz Casuarina Cones, 20 count

DrTim's Aquatics Axolotl Water Conditioner, 32-fl oz bottle

Aqueon AquaPacs Aquarium Sludge Remover, 12 pack, 10-gal

DrTim's Aquatics Clear-Up Freshwater Aquarium Cleaner, 4-fl oz bottle

API Aquarium Starter Kit

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

AquaZen Aquarium Water Conditioner - Dechlorinator, 4.06-fl oz bottle

Microbe-Lift Xtreme Aquarium Water Treatment, 8-oz bottle

Tetra Easy Balance Aquarium Water Conditioner, 3.38-oz bottle

Fluval Sea Calcium Aquarium Water Conditioner, 8-oz bottle

DrTim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums, 2-fl oz bottle

API Pond Ammo-Lock Pond Water Ammonia Detoxifier, 16-oz bottle

Python Multi Purpose Bio-Support Aquarium Water Care, 4-fl oz bottle

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