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Freshwater Aquarium Water Test Kits and Strips

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API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 1 of 7
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API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 1 of 7
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 2 of 7
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API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 1 of 7
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 2 of 7
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 3 of 7
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API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 5 of 7
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 6 of 7
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count slide 7 of 7

API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 100 count

Rated 4.5 out of 5 stars
136
$24.98 Chewy Price
($0.25/ea) Price per Unit
$34.98 List Price
Autoship Price

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

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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 1 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 2 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 3 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 4 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 5 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 6 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 7 of 9
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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 1 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 2 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 3 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 4 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 5 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 6 of 9
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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 8 of 9
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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 1 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 2 of 9
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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 5 of 9
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Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 7 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 8 of 9
Aqueon 7-in-1 Aquarium Test Strips, 50 count slide 9 of 9

Aqueon 7-in-1 Aquarium Test Strips, 50 count

Rated 4.4 out of 5 stars
70
$16.07 Chewy Price
($0.33/ea) Price per Unit
$17.99 List Price
Autoship Price

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

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API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 1 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 2 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 3 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 4 of 8
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API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 8 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 1 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 2 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 3 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 4 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 5 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 6 of 8
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API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 8 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 1 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 2 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 3 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 4 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 5 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 6 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 7 of 8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count slide 8 of 8

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

Rated 4.8 out of 5 stars
52
$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

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Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 7
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Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 7
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Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 6 of 7
Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count slide 7 of 7

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

Rated 4.2 out of 5 stars
35
$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 Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count

Rated 4 out of 5 stars
10
$11.98 Chewy Price
($0.07/ea) Price per Unit
$16.78 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
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

API Pond Wide Range pH Test Kit 160-Test Pond Water Test Kit, 1 count

Rated 4.4 out of 5 stars
19
$9.48 Chewy Price
$13.48 List Price
Autoship Price

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

Fluval Phosphate Fish Water Test Kit

Rated 5 out of 5 stars
3
$18.13 Chewy Price
$18.99 List Price
Autoship Price

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

Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 100 count

Rated 4.6 out of 5 stars
163
$32.97 Chewy Price
($0.33/ea) Price per Unit
$39.99 List Price
Autoship Price

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

Milwaukee Instruments Digital TDS Pen Aquarium Water Test Kit

$34.50 Chewy 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 out of 5 stars
7
$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

ASF SeaTest KH Alkalinity Fish Aquarium Water Test Kit, 100 count

Rated 5 out of 5 stars
2
$16.06 Chewy Price
($0.17/ea) Price per Unit
$18.99 List Price
Autoship Price

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

Aqueon Ammonia Aquarium Test Strips, 50 count

Rated 4.5 out of 5 stars
11
$14.95 Chewy Price
($0.30/ea) Price per Unit
$17.99 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 Sep 5 and Sep 9

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

Rated 4.4 out of 5 stars
14
$16.96 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

Fluval Ammonia Fish Water Test Kit

Rated 4.8 out of 5 stars
4
$17.42 Chewy Price
$18.99 List Price
Autoship Price

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

API High Range pH Fresh & Salt Water Aquarium Test Kit, 160 count

Rated 4.8 out of 5 stars
11
$9.48 Chewy Price
($0.06/ea) Price per Unit
$13.28 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 3.9 out of 5 stars
7
$49.70 Chewy Price
$50.99 List Price
Autoship Price

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

Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count

Rated 4.8 out of 5 stars
34
$15.97 Chewy Price
($0.16/ea) Price per Unit
$33.49 List Price
Autoship Price

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

Milwaukee Instruments Digital Conductivity Pen EC Aquarium Water Test Kit

$34.50 Chewy Price
Autoship Price

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

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

Rated 1 out of 5 stars
2
$16.74 Chewy Price
($0.42/ea) Price per Unit
$18.99 List Price
Autoship Price

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

API Pond 5-IN-1 Test Strips, 25 count

Rated 4.6 out of 5 stars
25
$14.98 Chewy Price
($0.60/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

Lifegard Fish Pond Ammonia Test Strips, 25 count

$26.40 Chewy Price
($1.06/ea) Price per Unit
$27.03 List Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Sep 5 and Sep 9

Salifert Aquarium Oxygen Test Kit

Rated 4.7 out of 5 stars
6
$14.89 Chewy Price
Autoship Price

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

Fluval Fresh & Salt pH High Range Fish Water Test Kit

Rated 4.5 out of 5 stars
2
$13.99 Chewy Price
Autoship Price

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

ASF SeaTest PO4- Phosphate Fish Aquarium Water Test Kit, 40 count

$20.39 Chewy Price
($0.51/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

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

Milwaukee Instruments Waterproof 3-in1 EC, TDS & Temperature Aquarium Water Test Kit

$77.90 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

Lifegard All Purpose 6-Way Fish Pond Test Strip Kit, 25 count

Rated 1 out of 5 stars
1
$45.70 Chewy Price
($1.83/ea) Price per Unit
$47.72 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Sep 5 and Sep 9

ASF SeaTest Ca2+ Calcium Fish Aquarium Water Test Kit, 40 count

Rated 3 out of 5 stars
1
$18.44 Chewy Price
($0.47/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

Milwaukee Instruments pH Controller Aquarium Water Test Kit

$209.99 Chewy Price
Autoship Price

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

ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count

Rated 5 out of 5 stars
1
$10.53 Chewy Price
($0.11/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

ASF SeaTest NO3- Nitrate Fish Aquarium Water Test Kit, 40 count

$17.25 Chewy Price
($0.44/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

Milwaukee Instruments Dissolved Oxygen Meter Aquarium Water Test Kit

Rated 5 out of 5 stars
1
$328.90 Chewy Price
Autoship Price

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

Save 5% on repeat deliveries

Water Test Type

Brand

7 Brands are shown below

Fish Type

Aquarium Concern

Price

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