Aquarium & Fish Tank Water Care

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API pH Freshwater Aquarium Test Kit, 250 count slide 1 of 7
API pH Freshwater Aquarium Test Kit, 250 count slide 2 of 7
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API pH Freshwater Aquarium Test Kit, 250 count slide 1 of 7
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API pH Freshwater Aquarium Test Kit, 250 count slide 4 of 7
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API pH Freshwater Aquarium Test Kit, 250 count slide 1 of 7
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API pH Freshwater Aquarium Test Kit, 250 count

Rated 4.7 out of 5 stars
80
$7.98 Chewy Price
($0.04/ea) Price per Unit
$11.28 List Price
Autoship Price

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

Ruby Reef Rally PRO Aquarium Water Treatment, 64-fl oz bottle

Rated 4 out of 5 stars
15
$36.99 Chewy Price
($0.58/fl oz) Price per Unit
Autoship Price

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

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

Rated 5 out of 5 stars
2
$48.39 Chewy Price
($1.43/fl oz) Price per Unit
Autoship Price

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

Slide 1 of 9
Aqueon PURE Pond Bomb Water Conditioner slide 1 of 9
Aqueon PURE Pond Bomb Water Conditioner slide 2 of 9
Aqueon PURE Pond Bomb Water Conditioner slide 3 of 9
Aqueon PURE Pond Bomb Water Conditioner slide 4 of 9
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Aqueon PURE Pond Bomb Water Conditioner slide 1 of 9
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Aqueon PURE Pond Bomb Water Conditioner slide 1 of 9
Aqueon PURE Pond Bomb Water Conditioner slide 2 of 9
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Aqueon PURE Pond Bomb Water Conditioner

Rated 4.3 out of 5 stars
28
$21.95 Chewy Price
$21.99 List Price
Autoship Price

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

Fluval Quick Clear Cloudy Water Treatment, 4-oz bottle

Rated 4.3 out of 5 stars
47
$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

Microbe-Lift Xtreme Aquarium Water Treatment, 8-oz bottle

Rated 4.7 out of 5 stars
10
$10.85 Chewy Price
($1.36/oz) Price per Unit
$11.85 List Price
Autoship Price

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

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
Autoship Price

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

API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count

Rated 4.7 out of 5 stars
21
$14.98 Chewy Price
($0.10/ea) Price per Unit
$20.98 List Price
Autoship Price

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

API Pond Simply Clear Pond Water Clarifier, 32-fl oz bottle

Rated 4.3 out of 5 stars
98
$29.98 Chewy Price
($0.94/fl oz) Price per Unit
$41.98 List Price
Autoship Price

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

Fritz Expel-P Aquarium Water Treatment, 10 count

Rated 4.2 out of 5 stars
28
$12.79 Chewy Price
($1.28/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

Pond Boss The Block Water Care, 5-lb block

Rated 4.2 out of 5 stars
27
$72.75 Chewy Price
($14.55/lb) Price per Unit
$73.99 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 11 and Apr 16

OASE Indoor Aquatics ScaperLine 9 Fish Soil, Black

$69.41 Chewy Price
($69.41/ea) Price per Unit
Autoship Price

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

API Marine Quick Start Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.5 out of 5 stars
15
$19.98 Chewy Price
($1.25/fl oz) Price per Unit
$27.98 List Price
Autoship Price

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

Tetra Pond Barley & Peat Extract Clear Water Treatment, 16.9-fl oz bottle

Rated 3.8 out of 5 stars
18
$17.29 Chewy Price
($1.03/fl oz) Price per Unit
Autoship Price

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

Salifert Aquarium Nitrite Test Kit

Rated 5 out of 5 stars
2
$12.99 Chewy Price
Autoship Price

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

Fluval Disposable CO2 Cartridge Fish CO2 Care, 3 count

Rated 3.5 out of 5 stars
6
$34.98 Chewy Price
($11.66/ea) Price per Unit
$69.99 List Price
Autoship Price

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

Laguna Clear Fast Aquarium Maintenance Solution, 16-oz

Rated 5 out of 5 stars
2
$22.99 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

API Calcium Saltwater Aquarium Test Kit, 1 count

Rated 4.7 out of 5 stars
14
$11.98 Chewy Price
$19.78 List Price
Autoship Price

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

API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count

Rated 4.7 out of 5 stars
46
$13.98 Chewy Price
($0.16/ea) Price per Unit
$19.78 List Price
Autoship Price

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

API Pond Master Test Kit, 500 count

Rated 4.8 out of 5 stars
37
$34.98 Chewy Price
($0.07/ea) Price per Unit
$48.98 List Price
Autoship Price

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

Fritz FixIck Aquarium Water Treatment, 16-fl oz bottle

Rated 4.5 out of 5 stars
8
$15.99 Chewy Price
($1.00/fl oz) Price per Unit
$19.99 List Price
Autoship Price

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

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

Rated 4.7 out of 5 stars
20
$38.25 Chewy Price
($1.92/lb) Price per Unit
$54.99 List Price
Autoship Price

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

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

Rated 3.4 out of 5 stars
60
$53.59 Chewy Price
($6.70/fl oz) Price per Unit
$65.99 List Price
Autoship Price

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

Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle

Rated 4.9 out of 5 stars
83
$9.32 Chewy Price
($1.11/fl oz) Price per Unit
$10.89 List Price
Autoship Price

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

API Marine Stress Coat Saltwater Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.8 out of 5 stars
29
$10.98 Chewy Price
($0.69/fl oz) Price per Unit
$15.48 List Price
Autoship Price

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

Salifert Aquarium Ammonia Test Kit

Rated 4.1 out of 5 stars
8
$13.99 Chewy Price
Autoship Price

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

API KH Carbonate Hardness Fresh & Salt Water Aquarium Test Kit

Rated 4.8 out of 5 stars
13
$8.75 Chewy Price
$12.78 List Price
Autoship Price

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

Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.2 out of 5 stars
32
$9.99 Chewy Price
($0.40/ea) Price per Unit
$26.39 List Price
Autoship Price

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

API Reef Aquarium Master Test Kit, 1 count

Rated 4.8 out of 5 stars
25
$34.98 Chewy Price
$50.48 List Price
Autoship Price

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

API Copper Cu+ Freshwater & Saltwater Aquarium Test Kit, 90 count

Rated 4.3 out of 5 stars
4
$12.48 Chewy Price
($0.14/ea) Price per Unit
$17.48 List Price
Autoship Price

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

API Pond & Waterfall Cleaner Pond Cleaner

Rated 4.6 out of 5 stars
14
$32.99 Chewy Price
$37.98 List Price
Autoship Price

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

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

Rated 4.4 out of 5 stars
23
$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

Fluval Supply Set Fish CO2 Care

Rated 3 out of 5 stars
9
$74.79 Chewy Price
$97.99 List Price
Autoship Price

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

Dr. Tim's Aquatics Eco-Balance Koi Ponds & Water Gardens Cleaner, 32-fl oz bottle

Rated 5 out of 5 stars
2
$31.39 Chewy Price
($0.99/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 16

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

Ruby Reef Kick-Ich PRO Aquarium Water Treatment, 64-fl oz bottle

Rated 3.7 out of 5 stars
18
$36.99 Chewy Price
($0.58/fl oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
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

Save 5% on repeat deliveries

Water Test Type

Aquarium Type

Aquarium Concern

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