Aquarium & Fish Tank Water Care

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AquaZen Trace Elements Freshwater Aquarium Plant Nutrition, 4.06-fl oz bottle

$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

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

Rated 5 out of 5 stars
5
$39.99 Chewy Price
($39.99/gl) Price per Unit
Autoship Price

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

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

Rated 4.2 out of 5 stars
5
$10.98 Chewy Price
($10.98/gl) 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 Betta Water Conditioner, 32-fl oz bottle slide 1 of 3
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Dr. Tim's Aquatics Betta Water Conditioner, 32-fl oz bottle slide 1 of 3
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Dr. Tim's Aquatics Betta Water Conditioner, 32-fl oz bottle

$7.87 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

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

$8.56 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
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Dr. Tim's Aquatics NP-Active Pearls for Nutrient Control in Aquariums, 450-mL bottle

Rated 4.7 out of 5 stars
3
$37.00 Chewy Price
($0.09/mL) Price per Unit
$45.99 List Price
Autoship Price

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

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

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

Rated 4.8 out of 5 stars
67
$5.34 Chewy Price
($1.34/fl oz) Price per Unit
$6.49 List Price
Autoship Price

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

API Pondcare Microbial Algae Clean Green Water Biological Inhibitor, 16-fl oz bottle

Rated 4.5 out of 5 stars
30
$15.98 Chewy Price
($1.00/fl oz) Price per Unit
$22.48 List Price
Autoship Price

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

Ruby Reef HydroPlex Aquarium Water Treatment, 64-fl oz bottle

Rated 4.6 out of 5 stars
8
$30.25 Chewy Price
($0.48/fl oz) Price per Unit
$36.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Dennerle Nano Bio CO2 Water Care Treatment Set, 12.6-oz bottle

Rated 1 out of 5 stars
2
$38.07 Chewy Price
($3.03/oz) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Dr. Tim's Aquatics Re-Fresh Freshwater Aquarium Cleaner, 32-fl oz bottle

$77.39 Chewy Price
($2.42/fl oz) Price per Unit
Autoship Price

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

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

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

Rated 5 out of 5 stars
1
$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

Bundle and Save 5%
Bundle: Aqueon Betta Bowl Plus Water Conditioner + Betta Fish Food
Rated 5 out of 5 stars
1
$9.05 Chewy Price
$9.53 List Price
Autoship Price

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

Dennerle Shrimp King Shrimp Active Aquarium Soil, 4-L bag

Rated 5 out of 5 stars
3
$35.00 Chewy Price
($8.75/l) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

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

AquaZen Nano CO2 Kit

Rated 5 out of 5 stars
1
$80.00 Chewy Price
Autoship Price

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

Fritz Aquarium Water Nitrite Test Kit

Rated 3 out of 5 stars
1
$11.99 Chewy Price
$15.99 List Price
Autoship Price

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

Microbe-Lift Barley Straw Pellets+ Pond Water Care, 10.5-lb box

Rated 3.8 out of 5 stars
5
$31.93 Chewy Price
($3.05/lb) Price per Unit
$38.95 List Price
Autoship Price

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

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

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

Rated 5 out of 5 stars
1
$13.41 Chewy Price
($6.71/fl 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

AquaZen Freshwater Aquarium CO2 Tablets

$14.99 Chewy Price
$15.00 List Price
Autoship Price

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

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

Rated 4.7 out of 5 stars
3
$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

Kordon Fish Protector Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.6 out of 5 stars
7
$10.99 Chewy Price
($0.69/fl oz) Price per Unit
Autoship Price

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

Dennerle CO2 Micro-Flipper Fish Aquarium Diffuser

$32.00 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 12 and Apr 16

Dr. Tim's Aquatics Freshwater Waste-Away Gel Water Conditioner, Large: 100-gal, 1 count

$22.69 Chewy Price
($22.69/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

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

Fritz ProAquatics Reef Pro Mix Redline Complete Aquarium Sea Salt, 55-lb box

Rated 4.5 out of 5 stars
11
$82.24 Chewy Price
($1.50/lb) Price per Unit
$84.99 List Price
Autoship Price

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

ASF SEATEST GH Total Hardness Fish Aquarium Water Test Kit, 40 count

$18.99 Chewy Price
($0.48/ea) Price per Unit
Autoship Price

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

Microbe-Lift Autumn/Winter Prep Pond Water Care, 1-gal jug

Rated 4 out of 5 stars
1
$99.74 Chewy Price
($99.74/gl) Price per Unit
$124.68 List Price
Autoship Price

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

Dr. Tim's Aquatics Re-Fresh Saltwater Aquarium Cleaner, 128-fl oz bottle

$301.59 Chewy Price
($2.36/fl oz) Price per Unit
Autoship Price

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

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

Rated 5 out of 5 stars
1
$18.69 Chewy Price
($4.68/oz) Price per Unit
$22.99 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

Fluval Nitrite Fish Water Test Kit

Rated 5 out of 5 stars
1
$16.99 Chewy Price
Autoship Price

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

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

Rated 4.5 out of 5 stars
12
$13.47 Chewy Price
($0.12/gl) Price per Unit
$16.99 List Price
Autoship Price

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

Category

Water Conditioner

Algaecide & Water Clarifier

Water Test Kits

Water Treatments

Plant Fertilizers

Mineral Salt

Filtration Bacteria

Water Clarifiers

Therapeutic Salt

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Aquarium Type

Aquarium Concern

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