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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ASF Calcium Booster Aquarium Treatment, 2.2-lb bottle

$17.99 Chewy Price

($8.18/lb) Price per Unit

$21.99 List Price

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Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Large: 100-gal, 2 count slide 2 of 7

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Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Large: 100-gal, 2 count

Rated 2 out of 5 stars

1

$36.49 Chewy Price

($18.25/ea) Price per Unit

$44.99 List Price

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Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Saltwater Aquariums, 2-fl oz bottle slide 2 of 8

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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

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Dr. Tim's Aquatics Axolotl One & Only Water Conditioner, 2-fl oz bottle slide 2 of 5

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

Rated 2.5 out of 5 stars

4

$16.79 Chewy Price

($8.40/fl oz) Price per Unit

$16.99 List Price

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API Reef Magnesium Marine Aquarium Solution, 16-oz bottle

$12.98 Chewy Price

($0.82/oz) Price per Unit

$18.28 List Price

29% Off

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

Rated 3.8 out of 5 stars

9

$7.78 Chewy Price

($1.95/oz) Price per Unit

$8.49 List Price

Autoship Price

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

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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

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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

1

$168.19 Chewy Price

($1.32/fl oz) Price per Unit

$175.99 List Price

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Free delivery on first-time orders
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Arrives between Jun 1 and Jun 4

Dr. Tim's Aquatics Waste-Away Gel Betta Water Conditioner, Small, 1 count

Rated 5 out of 5 stars

1

$13.99 Chewy Price

($13.99/ea) Price per Unit

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ASF Reef Shots Magnesium Aquarium Treatment, 16-oz bag

$19.98 Chewy Price

($1.25/oz) Price per Unit

$23.99 List Price

17% Off

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

$13.41 Chewy Price

($6.71/fl oz) Price per Unit

$16.99 List Price

21% Off

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Free 1-3 day delivery on first-time orders over $35
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Dr. Tim's Aquatics Eco-Balance Saltwater Aquarium Cleaner, 16-fl oz bottle

$31.99 Chewy Price

($2.00/oz) Price per Unit

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Laguna Water Prep Aquarium Water Maintenance Solution, 67.5-oz

$48.99 Chewy Price

($0.73/oz) Price per Unit

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API Betta Aquarium Water Conditioner, 1.7-fl oz bottle

Rated 4.6 out of 5 stars

33

$4.08 Chewy Price

($2.40/fl oz) Price per Unit

$5.98 List Price

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

Rated 5 out of 5 stars

1

$9.09 Chewy Price

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Aqueon AquaPacs Aquarium Water Conditioner, 12 pack, 10-gal

Rated 4.5 out of 5 stars

12

$11.82 Chewy Price

($0.10/gl) Price per Unit

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

Rated 2.8 out of 5 stars

4

$14.80 Chewy Price

($3.70/fl oz) Price per Unit

$14.99 List Price

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

$4.95 Chewy Price

($2.48/oz) Price per Unit

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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

$24.99 Chewy Price

($6.25/oz) Price per Unit

$25.99 List Price

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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

21% Off

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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

18% Off

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

$8.45 Chewy Price

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Dr. Tim's Aquatics Reef AquaCleanse Aquarium Cleaner, 128-fl oz bottle

$54.66 Chewy Price

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$60.99 List Price

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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

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Seapora Betta Water, 33.8-oz

Rated 4.3 out of 5 stars

12

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Dr. Tim's Aquatics Waste-Away Gel Plant Water Conditioner, Medium, 1 count

Rated 1 out of 5 stars

1

$17.09 Chewy Price

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$20.99 List Price

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

Rated 5 out of 5 stars

2

$17.99 Chewy Price

($4.50/oz) Price per Unit

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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

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HydrOasis Cinnamon Leaves Fish Plant, 10 count

$8.98 Chewy Price

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Arrives between Jun 1 and Jun 4

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

Rated 2.6 out of 5 stars

5

$8.99 Chewy Price

($0.29/fl oz) Price per Unit

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ASF Reef Minerals Aquarium Treatment, 2.2-lb bottle

$17.99 Chewy Price

($8.18/lb) Price per Unit

$21.99 List Price

18% Off

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

Rated 1.5 out of 5 stars

2

$18.99 Chewy Price

($2.38/fl oz) Price per Unit

$26.99 List Price

30% Off

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

$115.99 Chewy Price

($0.91/fl oz) Price per Unit

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Free delivery on first-time orders
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Arrives between Jun 1 and Jun 4

API Aquarium Water Conditioner & Tropical Fish Food Kit

Rated 4.9 out of 5 stars

9

$32.59 Chewy Price

$42.88 List Price

24% Off

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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

21% Off

Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Aquarium & Fish Tank Water Conditioner & Dechlorinator

ASF Calcium Booster Aquarium Treatment, 2.2-lb bottle

Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Large: 100-gal, 2 count

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

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

API Reef Magnesium Marine Aquarium Solution, 16-oz bottle

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

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

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

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

Dr. Tim's Aquatics Waste-Away Gel Betta Water Conditioner, Small, 1 count

ASF Reef Shots Magnesium Aquarium Treatment, 16-oz bag

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

Dr. Tim's Aquatics Eco-Balance Saltwater Aquarium Cleaner, 16-fl oz bottle

Laguna Water Prep Aquarium Water Maintenance Solution, 67.5-oz

API Betta Aquarium Water Conditioner, 1.7-fl oz bottle

Aqueon AquaPacs Aquarium Water Conditioner, 12 pack, 10-gal

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

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

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

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

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

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

Dr. Tim's Aquatics Reef AquaCleanse Aquarium Cleaner, 128-fl oz bottle

Fluval Sea Calcium Aquarium Water Conditioner, 8-oz bottle

Seapora Betta Water, 33.8-oz

Dr. Tim's Aquatics Waste-Away Gel Plant Water Conditioner, Medium, 1 count

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

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

HydrOasis Cinnamon Leaves Fish Plant, 10 count

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

ASF Reef Minerals Aquarium Treatment, 2.2-lb bottle

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

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

API Aquarium Water Conditioner & Tropical Fish Food Kit

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

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