Free $30 eGift card with your $100 order

Aquarium Maintenance & Water Care

Slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8
Slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 1 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 2 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 3 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 4 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 5 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 6 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 7 of 8
API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count slide 8 of 8

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

Rated 4.7 out of 5 stars
22
$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

Slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8
Slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 1 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 2 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 3 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 4 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 5 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 6 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 7 of 8
Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle slide 8 of 8

Tetra AquaSafe Aquarium Water Conditioner, 8.45-fl oz bottle

Rated 4.9 out of 5 stars
91
$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

Acurel F Aquarium Water Clarifier, 50-mL bottle

Rated 4.6 out of 5 stars
159
$8.99 Chewy Price
$9.99 List Price
Autoship Price

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

Slide 1 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 1 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 2 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 3 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 4 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 5 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 6 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 7 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 8 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 1 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 2 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 3 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 4 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 5 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 6 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 7 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 8 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 1 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 2 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 3 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 4 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 5 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 6 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 7 of 8
Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle slide 8 of 8

Aqueon Ammonia Neutralizer Water Conditioner, 16-fl oz bottle

Rated 4.6 out of 5 stars
45
$8.99 Chewy Price
($0.57/fl oz) Price per Unit
$14.49 List Price
Autoship Price

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

Tetra WaterClarifier Freshwater Aquarium Water Conditioner, 8.45-fl oz bottle

Rated 4.1 out of 5 stars
56
$8.82 Chewy Price
($1.05/fl oz) Price per Unit
$10.39 List Price
Autoship Price

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

API Pond Stress Coat Water Conditioner, 16-fl oz bottle

Rated 4.8 out of 5 stars
122
$12.48 Chewy Price
($0.78/fl oz) Price per Unit
$17.48 List Price
Autoship Price

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

Microbe-Lift Algaway 5.4 Pond Algae Control, 8-oz bottle

Rated 4.4 out of 5 stars
45
$10.07 Chewy Price
($1.26/oz) Price per Unit
$10.99 List Price
Autoship Price

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

Microbe-Lift Special Blend Salt & Fresh Water Eco System in a Bottle, 8.5-oz bottle

Rated 4.6 out of 5 stars
16
$12.99 Chewy Price
($1.53/oz) Price per Unit
$13.99 List Price
Autoship Price

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

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

Rated 5 out of 5 stars
1
$8.08 Chewy Price
($0.26/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

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

Rated 4.5 out of 5 stars
20
$11.18 Chewy Price
($1.58/oz) Price per Unit
$15.78 List Price
Autoship Price

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

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count

Rated 4.5 out of 5 stars
42
$12.98 Chewy Price
($0.06/ea) Price per Unit
$18.28 List Price
Autoship Price

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

Tetra AquaSafe Aquarium Water Conditioner, 1.69-fl oz bottle

Rated 5 out of 5 stars
41
$3.77 Chewy Price
($2.24/fl oz) Price per Unit
$6.29 List Price
Autoship Price

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

API Stress Coat with Pump Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.7 out of 5 stars
47
$16.82 Chewy Price
($1.06/fl oz) Price per Unit
$16.98 List Price
Autoship Price

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

Aqueon AquaPacs Aquarium Ammonia Reducer, 4 pack, 10-gal

Rated 4.6 out of 5 stars
18
$9.31 Chewy Price
($2.33/ea) Price per Unit
$9.99 List Price
Autoship Price

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

Tetra EasyBalance Plus Freshwater Aquarium Water Conditioner, 8.45-fl oz bottle

Rated 4.6 out of 5 stars
206
$10.07 Chewy Price
($1.20/fl oz) Price per Unit
$11.39 List Price
Autoship Price

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

Microbe-Lift PL Pond & Lagoon Bacteria Water Treatment, 16-oz bottle

Rated 4.7 out of 5 stars
113
$13.99 Chewy Price
($0.88/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

API Marine ALGAEFIX Algae Control 16-fl oz bottle

Rated 4.2 out of 5 stars
55
$18.98 Chewy Price
($1.19/fl oz) Price per Unit
$26.48 List 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 4.6 out of 5 stars
14
$11.82 Chewy Price
($0.10/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

Python Multi Purpose Aquarium Water Conditioner, 16.2-fl oz bottle

Rated 4.4 out of 5 stars
11
$7.48 Chewy Price
($0.47/fl oz) Price per Unit
$11.99 List Price
Autoship Price

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

API pH Down Freshwater Aquarium Water Treatment, 4-oz bottle

Rated 4.6 out of 5 stars
84
$5.88 Chewy Price
($1.47/oz) Price per Unit
$8.38 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 4.8 out of 5 stars
51
$11.00 Chewy Price
($0.13/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

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

Rated 4.2 out of 5 stars
34
$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 Pond Ammo-Lock Pond Water Ammonia Detoxifier, 16-oz bottle

Rated 4.8 out of 5 stars
17
$15.80 Chewy Price
($0.99/oz) Price per Unit
$20.98 List Price
Autoship Price

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

Fluker's Soaking Salt Hermit Crab Conditioner, 2.4-fl oz bottle

Rated 4.8 out of 5 stars
34
$4.63 Chewy Price
($1.93/fl oz) Price per Unit
Autoship Price

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

API Pond Chlorine & Heavy Metal Neutralizer, 32-fl oz bottle

Rated 4.8 out of 5 stars
94
$26.98 Chewy Price
($0.85/fl oz) Price per Unit
$37.78 List Price
Autoship Price

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

Fritz Casuarina Cones, 20 count

Rated 3 out of 5 stars
3
$12.99 Chewy Price
($0.65/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

API Pond & Waterfall Cleaner Pond Cleaner

Rated 4.7 out of 5 stars
15
$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

Microbe-Lift Algaway 5.4 Algae Control Aquarium Algaecide, 8-oz bottle

Rated 4.1 out of 5 stars
14
$9.49 Chewy Price
($1.19/oz) Price per Unit
$9.99 List Price
Autoship Price

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

Python Multi Purpose Bio-Clean Aquarium Water Care, 67.6-fl oz bottle

Rated 4.7 out of 5 stars
10
$30.11 Chewy Price
($0.45/fl oz) Price per Unit
$89.99 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, 128-fl oz bottle

Rated 4.5 out of 5 stars
4
$55.04 Chewy Price
($0.43/fl oz) Price per Unit
$61.15 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 22 and Jul 27

API Proper pH 7.0 Aquarium Water Treatment, 8.8-oz bottle

Rated 4.3 out of 5 stars
89
$11.18 Chewy Price
($1.28/oz) Price per Unit
$15.78 List Price
Autoship Price

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

API Aquarium Start-Up Pack

Rated 4.7 out of 5 stars
19
$6.99 Chewy Price
$8.28 List Price
Autoship Price

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

Tetra Algae Control Pond Fountain Block Water Treatment, 6 count

Rated 4.4 out of 5 stars
78
$7.82 Chewy Price
($1.31/ea) Price per Unit
$8.49 List Price
Autoship Price

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

API Aquarium Starter Kit

Rated 4.9 out of 5 stars
10
$31.38 Chewy Price
$43.48 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 Freshwater Aquariums, 64-fl oz bottl...

Rated 3.4 out of 5 stars
60
$236.89 Chewy Price
($3.71/fl oz) Price per Unit
$289.99 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 21 and Jul 26

Hydrospace PNS ProBio Fish Aquarium Additive, Maroon, 16-fl oz

Rated 5 out of 5 stars
1
$30.99 Chewy Price
($1.94/oz) Price per Unit
Autoship Price
  • Contains Live Feed

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

Product Type

Fish Type

Brand

7 Brands are shown below

Price

Customer Rating