What water treatment do I need for a freshwater aquarium?

Most freshwater aquariums need a water conditioner to remove chlorine and chloramines from tap water. Depending on your tank's needs, you may also require pH balancers, ammonia removers, and bacteria supplements to keep water parameters stable and fish healthy.

Do I need a special water conditioner for freshwater tanks?

Yes, freshwater aquariums need water conditioners formulated specifically for their environment. These treatments neutralize harmful chemicals in tap water and support a safe, stress-free habitat for your fish.

Tropical Fish Tank Health & Water Care - Page 7 (Free Shipping)

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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 64-fl oz bottle slide 2 of 6

Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 64-fl oz bottle slide 3 of 6

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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 64-fl oz bottle

$48.19 Chewy Price

($0.76/fl oz) Price per Unit

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 16

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Nature's Ocean Bio-Activ Live Aragonite Saltwater Aquarium Sand, Reef Substrate, 8-lb bag slide 2 of 3

Nature's Ocean Bio-Activ Live Aragonite Saltwater Aquarium Sand, Reef Substrate, 8-lb bag slide 3 of 3

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Nature's Ocean Bio-Activ Live Aragonite Saltwater Aquarium Sand, Reef Substrate, 8-lb bag

Rated 4.3 out of 5 stars

22

$16.64 Chewy Price

($2.08/lb) Price per Unit

$17.36 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

$29.99 Chewy Price

($29.99/gl) Price per Unit

Autoship Price

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

Slide 1 of 3

ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count slide 2 of 3

ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count slide 3 of 3

ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count

Rated 5 out of 5 stars

1

$12.39 Chewy Price

($0.13/ea) Price per Unit

$20.99 List Price

Autoship Price

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

Coralife Filter Bio Balls Fish Salt Minerals, 5 gallons

$79.99 Chewy Price

($16.00/gl) Price per Unit

$119.99 List Price

Autoship Price

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

Fluval Ammonia Fish Water Test Kit

Rated 4.7 out of 5 stars

3

$18.99 Chewy Price

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

Ruby Reef Kick-Ich NANO Formula Aquarium Water Treatment, 8-fl oz bottle

Rated 4.2 out of 5 stars

5

$8.99 Chewy Price

($1.13/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

$12.06 Chewy Price

($12.06/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

Dr. Tim's Aquatics One & Only Freshwater Aquarium Cleaner, 32-fl oz bottle

$143.79 Chewy Price

($4.50/fl oz) Price per Unit

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 16

ASF SeaTest NH3 Ammonia-Ammonium Fish Aquarium Water Test Kit, 40 count

Rated 1 out of 5 stars

1

$19.99 Chewy Price

($0.50/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

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

ASF SeaTest PO4- Phosphate Fish Aquarium Water Test Kit, 40 count

$23.99 Chewy Price

($0.60/ea) Price per Unit

$27.99 List Price

Autoship Price

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

ASF SeaTest KH Alkalinity Fish Aquarium Water Test Kit, 100 count

Rated 5 out of 5 stars

1

$18.89 Chewy Price

($0.19/ea) Price per Unit

$18.99 List Price

Autoship Price

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

ASF SeaTest NO2- Nitrite Fish Aquarium Water Test Kit, 100 count

$14.09 Chewy Price

($0.15/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

Fluval Curved Aquarium Scissors, 9.8-inch

Rated 4.7 out of 5 stars

15

$16.38 Chewy Price

$22.99 List Price

Autoship Price

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

Fluval Spring Aquarium Scissors, 5.9-inch

Rated 4 out of 5 stars

1

$16.98 Chewy Price

$19.99 List Price

Autoship Price

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

Out of Stock

Fritz Aquarium Water Nitrate Test Kit

Rated 4.5 out of 5 stars

2

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

Out of Stock

CaribSea Eco-Complete Cichlid Zack Aquarium Substrate, 20-lb bag

Rated 4.7 out of 5 stars

30

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

Out of Stock

Reeflowers BioClean III Aquarium Water Cleaner, 17-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers BioClean I Aquarium Water Cleaner, 34-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Fritz Aquarium Water Master Test Kit

Rated 4 out of 5 stars

8

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

Out of Stock

Reeflowers AquaPlants Ferrous Solution V Aquarium Plant Treatment, 34-oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Goldfish Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Rated 5 out of 5 stars

1

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Fritz Slime Out Fish Treatment, 20 count

Rated 5 out of 5 stars

3

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

Out of Stock

Reeflowers AquaClarify Fish Aquarium Water Conditioner, 17-fl oz bottle

Rated 5 out of 5 stars

1

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Minerals gH+ Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Rated 3 out of 5 stars

2

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers African Trace Fish Aquarium Water Conditioner, 17-fl oz bottle

Rated 5 out of 5 stars

1

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Betta Bonny Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers AquaPlants Trace Solution VI Aquarium Water Treatment, 34-oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers RemOrganics Fish Aquarium Water Conditioner, 17-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers pH Minus Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Effective Dechlorinator Fish Aquarium Water Conditioner, 17-fl oz bottle

Rated 4.7 out of 5 stars

6

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Aqua Plants Trace Balling Set VI Fish Aquarium Water Conditioner, 17-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers pH Minus Aquarium Water Treatment, 34-oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Out of Stock

Reeflowers Aqua Plants Potash Balling Set IV Fish Aquarium Water Conditioner, 17-fl oz bottle

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 9 and Apr 12

Tropical Fish Tank Health & Water Care

Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 64-fl oz bottle

Nature's Ocean Bio-Activ Live Aragonite Saltwater Aquarium Sand, Reef Substrate, 8-lb bag

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

ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count

Coralife Filter Bio Balls Fish Salt Minerals, 5 gallons

Fluval Ammonia Fish Water Test Kit

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

Ruby Reef Kick-Ich NANO Formula Aquarium Water Treatment, 8-fl oz bottle

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

Dr. Tim's Aquatics One & Only Freshwater Aquarium Cleaner, 32-fl oz bottle

ASF SeaTest NH3 Ammonia-Ammonium Fish Aquarium Water Test Kit, 40 count

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

ASF SeaTest PO4- Phosphate Fish Aquarium Water Test Kit, 40 count

ASF SeaTest KH Alkalinity Fish Aquarium Water Test Kit, 100 count

ASF SeaTest NO2- Nitrite Fish Aquarium Water Test Kit, 100 count

Fluval Curved Aquarium Scissors, 9.8-inch

Fluval Spring Aquarium Scissors, 5.9-inch

Fritz Aquarium Water Nitrate Test Kit

CaribSea Eco-Complete Cichlid Zack Aquarium Substrate, 20-lb bag

Reeflowers BioClean III Aquarium Water Cleaner, 17-fl oz bottle

Reeflowers BioClean I Aquarium Water Cleaner, 34-fl oz bottle

Fritz Aquarium Water Master Test Kit

Reeflowers AquaPlants Ferrous Solution V Aquarium Plant Treatment, 34-oz bottle

Reeflowers Goldfish Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Fritz Slime Out Fish Treatment, 20 count

Reeflowers AquaClarify Fish Aquarium Water Conditioner, 17-fl oz bottle

Reeflowers Minerals gH+ Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Reeflowers African Trace Fish Aquarium Water Conditioner, 17-fl oz bottle

Reeflowers Betta Bonny Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Reeflowers AquaPlants Trace Solution VI Aquarium Water Treatment, 34-oz bottle

Reeflowers RemOrganics Fish Aquarium Water Conditioner, 17-fl oz bottle

Reeflowers pH Minus Fish Aquarium Water Conditioner, 2.9-fl oz bottle

Reeflowers Effective Dechlorinator Fish Aquarium Water Conditioner, 17-fl oz bottle

Reeflowers Aqua Plants Trace Balling Set VI Fish Aquarium Water Conditioner, 17-fl oz bottle

Reeflowers pH Minus Aquarium Water Treatment, 34-oz bottle

Reeflowers Aqua Plants Potash Balling Set IV Fish Aquarium Water Conditioner, 17-fl oz bottle

Product Type

Fish Type

Health Feature

Brand

Price

Customer Rating