Aquarium & Fish Tank Water Care

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Microbe-Lift Pond & Fountain Defoamer Water Treatment, 16-oz bottle

Rated 5 out of 5 stars
11
$11.95 Chewy Price
($0.75/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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ASF Alkalinity & pH Booster Aquarium Treatment, 2.2-lb bottle slide 1 of 8
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ASF Alkalinity & pH Booster Aquarium Treatment, 2.2-lb bottle slide 1 of 8
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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
Autoship Price

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

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Aqueon Betta Water Renewal Conditioner, 4-oz bottle slide 1 of 7
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Aqueon Betta Water Renewal Conditioner, 4-oz bottle

Rated 3 out of 5 stars
2
$5.99 Chewy Price
($1.50/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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Coralife BioCube Marine Salt Fish Aquarium Care, 30-gram slide 1 of 3
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Coralife BioCube Marine Salt Fish Aquarium Care, 30-gram slide 1 of 3
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Coralife BioCube Marine Salt Fish Aquarium Care, 30-gram

Rated 5 out of 5 stars
3
$13.90 Chewy Price
($0.47/g) Price per Unit
$21.99 List Price
Autoship Price

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

API Ammonia NH3/NH4 Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.3 out of 5 stars
13
$16.98 Chewy Price
($0.68/ea) Price per Unit
$23.98 List Price
Autoship Price

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

Dennerle Carbo Elixier Bio Aquarium Plant Fertilizer, 500-mL bottle

Rated 3 out of 5 stars
2
$33.50 Chewy Price
($0.07/mL) Price per Unit
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 Waste-Away Natural Aquarium Cleaner for Reef Aquariums, 4-fl oz bottle

$13.49 Chewy Price
($3.38/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 Clear-Up Freshwater Aquarium Cleaner, 32-fl oz bottle

Rated 4.7 out of 5 stars
3
$48.59 Chewy Price
($1.52/fl oz) Price per Unit
Autoship Price

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

Microbe-Lift Aquatic Stress Relief Aquarium Treatment, 16-oz bottle

Rated 4.5 out of 5 stars
2
$10.36 Chewy Price
($0.65/oz) Price per Unit
$17.99 List Price
Autoship Price

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

Fluval Fresh pH Low Range Fish Water Test Kit

Rated 5 out of 5 stars
1
$13.99 Chewy Price
Autoship Price

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

Dr. Tim's Aquatics Waste-Away Natural Aquarium Cleaner for Saltwater Aquariums, 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
Autoship Price

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

Lifegard All Purpose 5-Way Fish Pond Test Strips, 25 count

$23.90 Chewy Price
($0.96/ea) Price per Unit
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 13 and Apr 17

AquaForest Perfect Water for Aquariums, 1.32-gal

Rated 5 out of 5 stars
2
$9.99 Chewy Price
($7.57/gl) Price per Unit
Autoship Price

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

API Pond pH Down Pond Water pH Reducing Solution, 16-oz bottle

Rated 4.8 out of 5 stars
17
$19.22 Chewy Price
($1.21/oz) Price per Unit
$22.28 List Price
Autoship Price

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

AquaZen CO2 Mini Regulator with Solenoid

$140.00 Chewy Price
Autoship Price

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

Dennerle NPK Booster Macro-Fertilizer Aquarium Plant Fertilizer, 100-mL bottle

Rated 4.3 out of 5 stars
6
$12.99 Chewy Price
($0.13/mL) Price per Unit
Autoship Price

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

Microbe-Lift TheraP Aquarium Fish Water Treatment, 16-oz bottle

Rated 3.3 out of 5 stars
7
$16.64 Chewy Price
($1.04/oz) Price per Unit
$19.55 List Price
Autoship Price

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

Lifegard Water Conditioner & Stress Reliever Fish Pond Treatment, 32-fl oz bottle

Rated 4.5 out of 5 stars
4
$22.01 Chewy Price
($0.69/fl oz) Price per Unit
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 13 and Apr 17

GloFish Betta Aquarium Water Conditioner, 2-fl oz bottle

$4.57 Chewy Price
($2.29/fl oz) Price per Unit
$6.19 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 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

Fluval Mini Master Fish Water Test Kit

Rated 3.4 out of 5 stars
5
$49.89 Chewy Price
$50.99 List Price
Autoship Price

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

AquaForest Component 1+2+3+ Aquarium Solution, 3.96-gal

Rated 5 out of 5 stars
1
$62.69 Chewy Price
($15.84/gl) Price per Unit
Autoship Price

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

OASE Indoor Aquatics ScaperLine 3 Fish Soil, Brown

Rated 5 out of 5 stars
2
$32.99 Chewy Price
($32.99/ea) Price per Unit
Autoship Price

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

Microbe-Lift Gravel & Substrate Aquarium Cleaner, 8-oz bottle

Rated 4.1 out of 5 stars
12
$11.50 Chewy Price
($1.44/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 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

Eheim Adjustable Fish Aquarium Air Diffuser

Rated 5 out of 5 stars
4
$6.95 Chewy Price
$9.08 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

$4.95 Chewy Price
($2.48/oz) Price per Unit
Autoship Price

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

API Betta Aquarium Water Conditioner, 1.7-fl oz bottle

Rated 4.6 out of 5 stars
31
$4.08 Chewy Price
($2.40/fl oz) Price per Unit
$5.98 List Price
Autoship Price

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

Dr. Tim's Aquatics Marine Waste-Away Gel Water Conditioner, Medium: 50-gal, 2 count

$31.19 Chewy Price
($15.60/ea) Price per Unit
$38.99 List Price
Autoship Price

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

Fluval Sea Iodine Aquarium Water Conditioner, 8-oz bottle

Rated 5 out of 5 stars
3
$8.92 Chewy Price
($1.12/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

API Pond Healthy Fish Pond Bundle, 3 count

$81.98 Chewy Price
($27.33/ea) Price per Unit
$114.98 List Price
Autoship Price

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

Dennerle CO2 Mini-Flipper Fish Aquarium Diffuser

Rated 5 out of 5 stars
1
$42.00 Chewy Price
Autoship Price

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

Zoo Med Betta H2O Conditioner, 0.5-fl oz

Rated 4.1 out of 5 stars
17
$4.99 Chewy Price
($9.98/fl oz) Price per Unit
Autoship Price

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

Coralife Marine PURE Water Care Bacteria Supplement, 4 pack

Rated 4.8 out of 5 stars
6
$11.95 Chewy Price
($2.99/ea) Price per Unit
$15.99 List Price
Autoship Price

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

Laguna Bio Sludge Control Aquarium Maintenance, 67.5-oz

Rated 3 out of 5 stars
2
$77.59 Chewy Price
($1.15/oz) Price per Unit
$99.99 List Price
Autoship Price

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

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

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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