Aquarium Water Test Kits for New Fish

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1 - 36 of 39 Results

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Slide 1 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 1 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 2 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 3 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 1 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 1 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 1 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 5 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 7 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 1 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 2 of 7
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API Freshwater Aquarium Master Test Kit, 800 count slide 4 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 5 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 6 of 7
API Freshwater Aquarium Master Test Kit, 800 count slide 7 of 7

API Freshwater Aquarium Master Test Kit, 800 count

Rated 4.7 out of 5 stars
294
$33.62 Chewy Price
($0.05/ea) Price per Unit
$50.48 List Price
$31.94 Autoship Price

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

Slide 1 of 9
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 9 of 9
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
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 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
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
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
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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
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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
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 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
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 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
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
43
$8.73 Chewy Price
($0.18/ea) Price per Unit
$17.99 List Price
$8.29 Autoship Price

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

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API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 7
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API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 7
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API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 7
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API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 7
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API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 7
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 7

API Saltwater Aquarium Master Test Kit, 550 count

Rated 4.5 out of 5 stars
37
$30.00 Chewy Price
($0.06/ea) Price per Unit
$50.48 List Price
$28.50 Autoship Price

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

Slide 1 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 2 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 3 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 4 of 5
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count slide 5 of 5

Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.6 out of 5 stars
134
$7.13 Chewy Price
($0.29/ea) Price per Unit
$13.19 List Price
$6.77 Autoship Price

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

SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester

Rated 4.5 out of 5 stars
28
$15.70 Chewy Price
$16.99 List Price
$14.92 Autoship Price

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

Salifert Aquarium Phosphate Test Kit

Rated 5 out of 5 stars
4
$18.00 Chewy Price
$19.61 List Price
$17.10 Autoship Price

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

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

Rated 4.4 out of 5 stars
117
$21.23 Chewy Price
($0.22/ea) Price per Unit
$34.98 List Price
$20.17 Autoship Price

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

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

Rated 4.8 out of 5 stars
43
$14.90 Chewy Price
($0.12/ea) Price per Unit
$21.78 List Price
$14.16 Autoship Price

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

Instant Ocean Testing Hydrometer for Aquariums, 1 count

Rated 4.1 out of 5 stars
32
$11.99 Chewy Price
$13.69 List Price
$11.39 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
24
$34.86 Chewy Price
$50.48 List Price
$33.12 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 4.1 out of 5 stars
27
$9.99 Chewy Price
($0.40/ea) Price per Unit
$26.39 List Price
$9.49 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
1
$18.99 Chewy 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
39
$11.00 Chewy Price
($0.13/ea) Price per Unit
$19.78 List Price
$10.45 Autoship Price

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

API pH Freshwater Aquarium Test Kit, 250 count

Rated 4.6 out of 5 stars
74
$7.98 Chewy Price
($0.04/ea) Price per Unit
$11.28 List Price
$7.58 Autoship Price

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

Salifert Aquarium Nitrate Test Kit

Rated 5 out of 5 stars
2
$15.50 Chewy Price
$17.37 List Price
$14.72 Autoship Price

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

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

Rated 4.9 out of 5 stars
27
$33.49 Chewy Price
($0.34/ea) Price per Unit
$31.82 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 4.5 out of 5 stars
11
$15.83 Chewy Price
($0.64/ea) Price per Unit
$23.98 List Price
$15.04 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 4.3 out of 5 stars
16
$9.49 Chewy Price
$13.48 List Price
$9.02 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
1
$10.65 Chewy Price
$11.86 List Price
$10.12 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 5 out of 5 stars
6
$12.98 Chewy Price
($0.08/ea) Price per Unit
$16.78 List Price
$12.33 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
13
$12.09 Chewy Price
$19.78 List Price
$11.49 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
$11.98 Chewy Price
($0.14/ea) Price per Unit
$17.48 List Price
$11.38 Autoship Price

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

Fritz Aquarium Water Nitrate Test Kit

Rated 4 out of 5 stars
1
$13.49 Chewy Price
$17.99 List 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
19
$14.98 Chewy Price
($0.10/ea) Price per Unit
$20.98 List Price
$14.23 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
30
$8.98 Chewy Price
($0.04/ea) Price per Unit
$18.28 List Price
$8.53 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 4.7 out of 5 stars
34
$30.15 Chewy Price
($0.07/ea) Price per Unit
$48.98 List Price
$28.64 Autoship Price

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

Fluval Ammonia Fish Water Test Kit

Rated 4.5 out of 5 stars
2
$14.99 Chewy Price
$18.99 List 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 4.7 out of 5 stars
10
$8.98 Chewy Price
$12.78 List Price
$8.53 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
22
$13.06 Chewy Price
($0.53/ea) Price per Unit
$20.98 List Price
$12.41 Autoship Price

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

Salifert Aquarium Potassium Test Kit

Rated 5 out of 5 stars
1
$8.82 Chewy Price
$18.81 List Price
$8.38 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
$10.99 Chewy Price
$13.99 List 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

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

API pH Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.3 out of 5 stars
8
$15.99 Chewy Price
($0.64/ea) Price per Unit
$18.28 List Price
$15.19 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
10
$9.48 Chewy Price
($0.06/ea) Price per Unit
$13.28 List Price
$9.01 Autoship Price

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

Salifert Aquarium Oxygen Test Kit

Rated 4.3 out of 5 stars
3
$14.89 Chewy Price
$14.15 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
$10.99 Chewy Price
$13.99 List Price

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

Save 5% on repeat deliveries

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