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 5 (Free Shipping)

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

Rated 5 out of 5 stars

5

$30.79 Chewy Price

($30.79/gl) Price per Unit

$38.49 List Price

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Free 1-3 day delivery on first-time orders over $35
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Dr. Tim's Aquatics Re-Fresh Saltwater Aquarium Cleaner, 4-fl oz bottle slide 2 of 7

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

$20.89 Chewy Price

($5.23/oz) Price per Unit

$25.99 List Price

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Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 1-gal slide 2 of 2

Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 1-gal

$185.99 Chewy Price

($185.99/gl) Price per Unit

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Contains Live Feed

Free 1-3 day delivery on first-time orders
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HydrOasis Guava Leaves Fish Plant, 10 count slide 2 of 9

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HydrOasis Guava Leaves Fish Plant, 10 count slide 4 of 9

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HydrOasis Guava Leaves Fish Plant, 10 count

Rated 3 out of 5 stars

2

$8.98 Chewy Price

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Free delivery on first-time orders over $35
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Arrives between Jun 1 and Jun 4

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

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ASF Reef Shots Reef Bacteria Food Aquarium Treatment, 16-oz bag

$15.73 Chewy Price

($0.99/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 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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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
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Dr. Tim's Aquatics One & Only Koi Ponds & Water Gardens Cleaner, 128-fl oz bottle

$601.29 Chewy Price

($4.70/fl oz) Price per Unit

$611.99 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jun 1 and Jun 4

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

Dr. Tim's Aquatics Betta 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

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

Hydrospace PNS HomeGro Fish Aquarium Bacteria, Blue, 2.5-gal

$145.99 Chewy Price

($58.40/gl) Price per Unit

$150.99 List Price

Autoship Price

Contains Live Feed

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

HydrOasis Jack Leaves Fish Plant, 10 count

$9.98 Chewy Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 1 and Jun 4

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

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

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

$282.59 Chewy Price

($2.21/fl oz) Price per Unit

$289.99 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jun 1 and Jun 4

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

Rated 4.6 out of 5 stars

9

$22.95 Chewy Price

($1.44/oz) Price per Unit

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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

$30.19 Chewy Price

($3.78/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, Small, 1 count

$12.72 Chewy Price

($12.72/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

ASF Reef Shots Calcium 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

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

$7.56 Chewy Price

($0.24/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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Hydrospace PNS DeepCycle Fish Supplement, 1-gal

$219.99 Chewy Price

($219.99/gl) Price per Unit

Autoship Price

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

ASF Reef Shots Iodide Aquarium Treatment, 16-oz bag

$13.18 Chewy Price

($0.83/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

HydrOasis Catappa Leaves Nano Fish Plant, 10 count

$9.98 Chewy Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 1 and Jun 4

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

$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

Dr. Tim's Aquatics Reef Clear-Up Marine Aquarium Cleaner, 8-fl oz bottle

$25.09 Chewy Price

($3.14/oz) Price per Unit

$30.99 List Price

Autoship Price

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

ASF Magnesium 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
Free 365-day returns

ASF Reef Shots Coraline Booster 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

HydrOasis Thelambu Pod Fish Plant

Rated 5 out of 5 stars

2

$17.49 Chewy Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 1 and Jun 4

Out of Stock

Aqueon PURE Sludge Bomb Water Conditioner

Rated 4.2 out of 5 stars

25

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

Out of Stock

Lifegard Pond Cleaner & Sludge Remover Pond Treatment, 32-fl oz bottle

Rated 5 out of 5 stars

5

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 3 and Jun 7

Out of Stock

Aqueon PURE Pond Bomb Water Conditioner

Rated 4.3 out of 5 stars

29

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

Out of Stock

AquaForest Life Source Natural Mud for Aquariums, 33.84-fl oz

Rated 5 out of 5 stars

3

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

Out of Stock

Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 16-fl oz bottle

Rated 5 out of 5 stars

2

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 1 and Jun 4

Out of Stock

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

Rated 4.5 out of 5 stars

4

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

Aquarium & Fish Tank Water Conditioner & Dechlorinator

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

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

Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 1-gal

HydrOasis Guava Leaves Fish Plant, 10 count

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

ASF Reef Shots Reef Bacteria Food Aquarium Treatment, 16-oz bag

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

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

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

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

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

ASF Reef Shots Probiotics Aquarium Treatment, 16-oz bag

Hydrospace PNS HomeGro Fish Aquarium Bacteria, Blue, 2.5-gal

HydrOasis Jack Leaves Fish Plant, 10 count

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

Aquascape Alkalinity Booster Fish, 7-lb bucket

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

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

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

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

ASF Reef Shots Calcium Aquarium Treatment, 16-oz bag

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

Hydrospace PNS DeepCycle Fish Supplement, 1-gal

ASF Reef Shots Iodide Aquarium Treatment, 16-oz bag

HydrOasis Catappa Leaves Nano Fish Plant, 10 count

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

Dr. Tim's Aquatics Reef Clear-Up Marine Aquarium Cleaner, 8-fl oz bottle

ASF Magnesium Booster Aquarium Treatment, 2.2-lb bottle

ASF Reef Shots Coraline Booster Aquarium Treatment, 16-oz bag

HydrOasis Thelambu Pod Fish Plant

Aqueon PURE Sludge Bomb Water Conditioner

Lifegard Pond Cleaner & Sludge Remover Pond Treatment, 32-fl oz bottle

Aqueon PURE Pond Bomb Water Conditioner

AquaForest Life Source Natural Mud for Aquariums, 33.84-fl oz

Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 16-fl oz bottle

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

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