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Fish
Water Care

Fish > Water Care

Water Conditioners Algaecides & Water Clarity Water Test Kits pH Treatments Plant Care Salt & Minerals

Tetra AquaSafe Aquarium Water Conditioner, 1.69-oz bottle

Tetra AquaSafe Aquarium Water Conditioner, 1.69-oz bottle

Spend $50 Save 25% On Select Items

$2.64 Autoship & Save

$2.78

14

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test Kit, 250 count

API pH Freshwater Aquarium Test Kit, 250 count

$4.95 Autoship & Save

$5.21 $9.19

15

FREE 1-3 day shipping over $49

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

$10.93 Autoship & Save

$11.51 $18.00

9

FREE 1-3 day shipping over $49

EcoBio-Block EcoBio-Stone with Beneficial Aquarium Bacteria, Medium

More Choices Available

EcoBio-Block EcoBio-Stone with Beneficial Aquarium Bacteria, Medium

$15.10 Autoship & Save

$15.90 $33.00

18

FREE 1-3 day shipping over $49

Fluval Quick Clear Cloudy Water Treatment, 4-oz bottle

Fluval Quick Clear Cloudy Water Treatment, 4-oz bottle

$3.79 Autoship & Save

$3.99 $4.99

8

FREE 1-3 day shipping over $49

Instant Ocean Testing Hydrometer for Aquariums, 1 count

Instant Ocean Testing Hydrometer for Aquariums, 1 count

$8.54 Autoship & Save

$8.99

5

FREE 1-3 day shipping over $49

Aqueon Aquarium Water Clarifier, 16-oz bottle

Aqueon Aquarium Water Clarifier, 16-oz bottle

$7.87 Autoship & Save

$8.28 $12.99

2

FREE 1-3 day shipping over $49

API Betta Aquarium Water Conditioner, 1.7-oz bottle

API Betta Aquarium Water Conditioner, 1.7-oz bottle

$2.92 Autoship & Save

$3.07 $5.00

10

FREE 1-3 day shipping over $49

Aqueon Freshwater Clarifier, 8-oz bottle

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Aqueon Freshwater Clarifier, 8-oz bottle

Spend $50 Save 25% On Select Items

$4.74 Autoship & Save

$4.99 $7.99

17

FREE 1-3 day shipping over $49

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

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

$8.41 Autoship & Save

$8.85 $16.00

6

FREE 1-3 day shipping over $49

Acurel F Aquarium Water Clarifier, 50-mL bottle

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Acurel F Aquarium Water Clarifier, 50-mL bottle

$8.97 $9.99

27

FREE 1-3 day shipping over $49

API Tap Water Conditioner Aquarium Water Conditioner, 32-oz bottle

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API Tap Water Conditioner Aquarium Water Conditioner, 32-oz bottle

$16.14 Autoship & Save

$16.99 $19.99

4

FREE 1-3 day shipping over $49

Fluval Ammonia Remover Nylon Filter Bags, 3 count

Fluval Ammonia Remover Nylon Filter Bags, 3 count

$7.97 Autoship & Save

$8.39 $8.49

4

FREE 1-3 day shipping over $49

Fluval Plant & Shrimp Stratum Plant Care, 17.6-lb bag

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Fluval Plant & Shrimp Stratum Plant Care, 17.6-lb bag

$37.52 Autoship & Save

$39.49 $53.99

14

FREE 1-3 day shipping over $49

Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums, 2-oz bottle

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Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums, 2-oz bottle

$12.23 Autoship & Save

$12.87

10

FREE 1-3 day shipping over $49

GloFish Aquarium Water Conditioner, 4-oz bottle

GloFish Aquarium Water Conditioner, 4-oz bottle

Spend $50 Save 25% On Select Items

$3.70 Autoship & Save

$3.89

3

FREE 1-3 day shipping over $49

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

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

$11.88 Autoship & Save

$12.50 $17.19

7

FREE 1-3 day shipping over $49

Dr. Tim's Aquatics Waste-Away Natural Aquarium Cleaner for Freshwater Aquariums, 16-oz bottle

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Dr. Tim's Aquatics Waste-Away Natural Aquarium Cleaner for Freshwater Aquariums, 16-oz bottle

$15.55 Autoship & Save

$16.37

14

FREE 1-3 day shipping over $49

Tetra AquaSafe Aquarium Water Conditioner, 8.45-oz bottle

Tetra AquaSafe Aquarium Water Conditioner, 8.45-oz bottle

$6.86 Autoship & Save

$7.22 $8.99

2

FREE 1-3 day shipping over $49

Fluval Biological Cleaner Water Conditioner, 8.4-oz bottle

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Fluval Biological Cleaner Water Conditioner, 8.4-oz bottle

$8.77 Autoship & Save

$9.23 $13.99

4

FREE 1-3 day shipping over $49

API Reef Aquarium Master Test Kit, 1 count

API Reef Aquarium Master Test Kit, 1 count

$25.64 Autoship & Save

$26.99 $37.99

11

FREE 1-3 day shipping over $49

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

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

$8.74 Autoship & Save

$9.20 $19.99

2

FREE 1-3 day shipping over $49

Aqueon Aquarium Freshwater Plant Food, 16-oz bottle

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Aqueon Aquarium Freshwater Plant Food, 16-oz bottle

$10.48 Autoship & Save

$11.03 $12.99

6

FREE 1-3 day shipping over $49

API Aquarium Water Conditioner & Tropical Fish Food Kit

API Aquarium Water Conditioner & Tropical Fish Food Kit

$12.27 Autoship & Save

$12.92 $39.59

2

FREE 1-3 day shipping over $49

Aqueon Shrimp Essentials Shrimp & Crayfish Freshwater Aquarium Trace Minerals, 4-oz bottle

Aqueon Shrimp Essentials Shrimp & Crayfish Freshwater Aquarium Trace Minerals, 4-oz bottle

$4.01 Autoship & Save

$4.22 $5.99

3

FREE 1-3 day shipping over $49

API Proper pH 8.2 Aquarium Water Treatment, 7.1-oz bottle

API Proper pH 8.2 Aquarium Water Treatment, 7.1-oz bottle

$8.29 Autoship & Save

$8.73 $12.59

3

FREE 1-3 day shipping over $49

API Algaefix Marine Aquarium Algaecide, 16-oz bottle

API Algaefix Marine Aquarium Algaecide, 16-oz bottle

$14.59 Autoship & Save

$15.36 $22.39

3

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count

$8.47 Autoship & Save

$8.92 $15.39

3

FREE 1-3 day shipping over $49

Fluval Plant Micro Nutrients Plant Care, 8.4-oz bottle

Fluval Plant Micro Nutrients Plant Care, 8.4-oz bottle

$6.64 Autoship & Save

$6.99 $10.49

1

FREE 1-3 day shipping over $49

API Quick Start Freshwater And Saltwater Aquarium Nitrifying Bacteria, 32-oz bottle

API Quick Start Freshwater And Saltwater Aquarium Nitrifying Bacteria, 32-oz bottle

$29.73 Autoship & Save

$31.29 $44.00

FREE 1-3 day shipping over $49

Fluval Total Protection Water Conditioner, 16.9-oz bottle

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Fluval Total Protection Water Conditioner, 16.9-oz bottle

$9.49 Autoship & Save

$9.99

4

FREE 1-3 day shipping over $49

API Goldfish Aquarium Cleaner, 4-oz bottle

API Goldfish Aquarium Cleaner, 4-oz bottle

$3.39 Autoship & Save

$3.57 $4.99

8

FREE 1-3 day shipping over $49

API Root Tabs Aquarium Plant Fertilizer, 10-count

API Root Tabs Aquarium Plant Fertilizer, 10-count

$8.11 Autoship & Save

$8.54 $12.59

4

FREE 1-3 day shipping over $49

EcoBio-Block EcoBio-Stone Nano Natural Water Clarifier and Odor Remover, 2 count

More Choices Available

EcoBio-Block EcoBio-Stone Nano Natural Water Clarifier and Odor Remover, 2 count

$17.09 Autoship & Save

$17.99

4

FREE 1-3 day shipping over $49

Tetra Cleaning Bacteria Aquarium Water Care, 8-oz bottle

More Choices Available

Tetra Cleaning Bacteria Aquarium Water Care, 8-oz bottle

$7.31 Autoship & Save

$7.69 $8.99

FREE 1-3 day shipping over $49

API Pond-Zyme Sludge Destroyer Pond Sludge Remover, 16-oz bottle

More Choices Available

API Pond-Zyme Sludge Destroyer Pond Sludge Remover, 16-oz bottle

$24.98 Autoship & Save

$26.29 $36.79

12

FREE 1-3 day shipping over $49

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