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 4 (Free Shipping)

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Dr. Tim's Aquatics One & Only Koi Ponds & Water Gardens Cleaner, 128-fl oz bottle slide 2 of 6

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

$611.99 Chewy Price

($4.79/fl oz) Price per Unit

Autoship Price

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

AquaZen Aquarium Water Conditioner - Clarifier, 8.45-fl oz bottle

$12.99 Chewy Price

($1.54/fl 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 Shrimp First Defense Water Conditioner, 4-fl oz bottle slide 2 of 5

Dr. Tim's Aquatics Shrimp First Defense Water Conditioner, 4-fl oz bottle slide 3 of 5

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Dr. Tim's Aquatics Shrimp First Defense Water Conditioner, 4-fl oz bottle

$11.29 Chewy Price

($2.83/fl oz) Price per Unit

$13.99 List Price

Autoship Price

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

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

Rated 5 out of 5 stars

3

$27.49 Chewy Price

($27.49/gl) Price per Unit

Autoship Price

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

Microbe-Lift Sabbactisun All-Natural Expellant Aquarium Bacterial Disease Water Conditioner, 16...

Rated 4.6 out of 5 stars

9

$22.93 Chewy Price

($1.44/oz) Price per Unit

$28.99 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 One & Only Live Nitrifying Bacteria for Saltwater Aquariums, 2-fl oz bottle

Rated 2.7 out of 5 stars

11

$20.99 Chewy Price

($10.50/fl oz) Price per Unit

$27.99 List Price

Autoship Price

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

API Marine Stress Zyme Saltwater Aquarium Cleaning Solution, 16-fl oz bottle

Rated 4.7 out of 5 stars

22

$15.48 Chewy Price

($0.97/fl oz) Price per Unit

$21.78 List Price

Autoship Price

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

Aquascape Alkalinity Booster Fish, 7-lb bucket

Rated 4.5 out of 5 stars

2

$39.99 Chewy Price

($5.72/lb) Price per Unit

Autoship Price

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

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Dr. Tim's Aquatics Re-Fresh Freshwater Aquarium Cleaner, 8-fl oz bottle

Rated 4.7 out of 5 stars

7

$26.99 Chewy Price

($3.38/fl oz) Price per Unit

$39.99 List Price

Autoship Price

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

biOrb Aquarium Service Kit 3 Plus Water Optimizer

Rated 4.7 out of 5 stars

43

$31.00 Chewy Price

$36.99 List Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 20 and Jul 26

ASF Reef Shots Probiotics Aquarium Treatment, 16-oz bag

$19.99 Chewy Price

($1.25/oz) Price per Unit

$23.99 List Price

Autoship Price

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

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
Free 365-day returns

Dr. Tim's Aquatics Shrimp 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

Autoship Price

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

API Splendid Betta Complete Aquarium Water Conditioner, 1.25-fl oz bottle

Rated 5 out of 5 stars

10

$5.78 Chewy Price

($4.63/fl 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 Reef AquaCleanse Aquarium Cleaner, 4-fl oz bottle

$9.29 Chewy Price

($2.33/oz) Price per Unit

$11.99 List Price

Autoship Price

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

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ME Coral Single Shot Dip Aquarium Coral Care, 15 count

$45.00 Chewy Price

($3.00/ea) Price per Unit

Autoship Price

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

Microbe-Lift Parazoryne Parastic Disease Water Conditioner, 16-oz bottle

Rated 4.9 out of 5 stars

9

$25.99 Chewy Price

($1.63/oz) Price per Unit

$28.99 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 Koi Ponds & Water Gardens Cleaner, 128-fl oz bottle

Rated 5 out of 5 stars

2

$144.19 Chewy Price

($1.13/fl oz) Price per Unit

$175.99 List Price

Autoship Price

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

ASF Reef Minerals 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
Free 365-day returns

Dr. Tim's Aquatics Waste-Away Gel Plant Water Conditioner, Medium, 2 count

Rated 1 out of 5 stars

1

$23.91 Chewy Price

($11.96/ea) Price per Unit

$35.99 List Price

Autoship Price

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

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

Rated 2.6 out of 5 stars

5

$8.62 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

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

$11.89 Chewy Price

($2.98/oz) Price per Unit

$14.99 List Price

Autoship Price

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

API Goldfish Care Pack Aquarium Water Conditioner, 1.25-fl oz bottle

Rated 4.3 out of 5 stars

9

$5.98 Chewy Price

($4.79/fl 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 Reef First Defense Marine Aquarium Cleaner, 4-fl oz bottle

Rated 5 out of 5 stars

1

$12.79 Chewy Price

($3.20/oz) Price per Unit

$15.99 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 AquaCleanse Saltwater Aquarium Cleaner, 8-fl oz bottle

$13.89 Chewy Price

($1.74/oz) Price per Unit

$16.99 List Price

Autoship Price

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

Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Small: 10-gal, 1 count

Rated 2 out of 5 stars

1

$14.98 Chewy Price

($14.98/ea) Price per Unit

$14.99 List Price

Autoship Price

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

Microbe-Lift Goldfish Care Bowl Cleaner, 2-oz bottle

$4.94 Chewy Price

($2.47/oz) Price per Unit

$4.95 List Price

Autoship Price

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

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

Rated 2.8 out of 5 stars

4

$13.03 Chewy Price

($3.26/fl oz) Price per Unit

$14.99 List Price

Autoship Price

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

ASF Reef Shots Strontium Aquarium Treatment, 16-oz bag

$20.50 Chewy Price

($1.29/oz) Price per Unit

$23.99 List Price

Autoship Price

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

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

$7.96 Chewy Price

($0.25/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

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

Rated 3 out of 5 stars

1

$25.00 Chewy Price

($6.25/oz) Price per Unit

$25.99 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 Axolotl First Defense Water Conditioner, 4-fl oz bottle

Rated 3 out of 5 stars

2

$13.99 Chewy Price

($3.50/fl oz) Price per Unit

Autoship Price

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

Dr. Tim's Aquatics Waste-Away Gel Turtle Water Conditioner, Medium, 2 count

$29.19 Chewy Price

($14.60/ea) Price per Unit

$35.99 List Price

Autoship Price

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

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

Rated 3 out of 5 stars

2

$29.99 Chewy Price

($3.75/fl oz) Price per Unit

$30.19 List Price

Autoship Price

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

Dr. Tim's Aquatics Waste-Away Koi Ponds & Water Gardens Cleaner, 64-fl oz bottle

Rated 5 out of 5 stars

1

$56.39 Chewy Price

($0.89/fl oz) Price per Unit

$68.99 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 Shrimp Waste-Away Gel Water Conditioner, Small, 2 count

$19.29 Chewy Price

($9.65/ea) Price per Unit

$23.99 List Price

Autoship Price

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

Aquarium & Fish Tank Water Conditioner & Dechlorinator

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

AquaZen Aquarium Water Conditioner - Clarifier, 8.45-fl oz bottle

Dr. Tim's Aquatics Shrimp First Defense Water Conditioner, 4-fl oz bottle

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

Microbe-Lift Sabbactisun All-Natural Expellant Aquarium Bacterial Disease Water Conditioner, 16...

Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Saltwater Aquariums, 2-fl oz bottle

API Marine Stress Zyme Saltwater Aquarium Cleaning Solution, 16-fl oz bottle

Aquascape Alkalinity Booster Fish, 7-lb bucket

Dr. Tim's Aquatics Re-Fresh Freshwater Aquarium Cleaner, 8-fl oz bottle

biOrb Aquarium Service Kit 3 Plus Water Optimizer

ASF Reef Shots Probiotics Aquarium Treatment, 16-oz bag

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

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

API Splendid Betta Complete Aquarium Water Conditioner, 1.25-fl oz bottle

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

ME Coral Single Shot Dip Aquarium Coral Care, 15 count

Microbe-Lift Parazoryne Parastic Disease Water Conditioner, 16-oz bottle

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

ASF Reef Minerals Aquarium Treatment, 2.2-lb bottle

Dr. Tim's Aquatics Waste-Away Gel Plant Water Conditioner, Medium, 2 count

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

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

API Goldfish Care Pack Aquarium Water Conditioner, 1.25-fl oz bottle

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

Dr. Tim's Aquatics AquaCleanse Saltwater Aquarium Cleaner, 8-fl oz bottle

Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Small: 10-gal, 1 count

Microbe-Lift Goldfish Care Bowl Cleaner, 2-oz bottle

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

ASF Reef Shots Strontium Aquarium Treatment, 16-oz bag

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

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

Dr. Tim's Aquatics Axolotl First Defense Water Conditioner, 4-fl oz bottle

Dr. Tim's Aquatics Waste-Away Gel Turtle Water Conditioner, Medium, 2 count

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

Dr. Tim's Aquatics Waste-Away Koi Ponds & Water Gardens Cleaner, 64-fl oz bottle

Dr. Tim's Aquatics Shrimp Waste-Away Gel Water Conditioner, Small, 2 count

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