Saltwater Test Kits For Aquariums

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Slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
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API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 5 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 6 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 5 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 6 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8
Slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 5 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 6 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 5 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 6 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 1 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 2 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 3 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 4 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 5 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 6 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 7 of 8
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count slide 8 of 8

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

Rated 4.8 out of 5 stars
48
$15.48 Chewy Price
($0.12/ea) Price per Unit
$21.78 List Price
$14.71 Autoship Price

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

Slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8
Slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 1 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 2 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 3 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 4 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 5 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 6 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 7 of 8
API Saltwater Aquarium Master Test Kit, 550 count slide 8 of 8

API Saltwater Aquarium Master Test Kit, 550 count

Rated 4.5 out of 5 stars
38
$34.99 Chewy Price
($0.07/ea) Price per Unit
$50.48 List Price
$33.24 Autoship Price

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

Slide 1 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 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 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 4.7 out of 5 stars
45
$13.20 Chewy Price
($0.15/ea) Price per Unit
$19.78 List Price
$12.54 Autoship Price

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

Slide 1 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 1 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 2 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 3 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 4 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 5 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 6 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 7 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 8 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 1 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 2 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 3 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 4 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 5 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 6 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 7 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 8 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 1 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 2 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 3 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 4 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 5 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 6 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 7 of 8
API Calcium Saltwater Aquarium Test Kit, 1 count slide 8 of 8

API Calcium Saltwater Aquarium Test Kit, 1 count

Rated 4.7 out of 5 stars
14
$9.00 Chewy Price
$19.78 List Price
$8.55 Autoship Price

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

API Freshwater Aquarium Master Test Kit, 800 count

Rated 4.7 out of 5 stars
321
$31.46 Chewy Price
($0.04/ea) Price per Unit
$50.48 List Price
$29.89 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
146
$13.83 Chewy Price
($0.14/ea) Price per Unit
$37.49 List Price
$13.14 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
20
$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 GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit

Rated 4.7 out of 5 stars
75
$11.84 Chewy Price
$16.78 List Price
$11.25 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 4.5 out of 5 stars
126
$24.98 Chewy Price
($0.25/ea) Price per Unit
$34.98 List Price
$23.73 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
$34.98 Chewy Price
$50.48 List Price
$33.23 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
12
$8.75 Chewy Price
$12.78 List Price
$8.31 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
28
$15.97 Chewy Price
($0.16/ea) Price per Unit
$33.49 List Price
$15.17 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
$17.59 Chewy Price
$19.61 List Price
$16.71 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

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

Salifert Aquarium Oxygen Test Kit

Rated 4.7 out of 5 stars
6
$17.41 Chewy Price
$16.54 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
79
$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

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 Nitrate Test Kit

Rated 4.8 out of 5 stars
4
$15.19 Chewy Price
$17.37 List Price
$14.43 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
30
$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

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
$11.86 Autoship Price

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

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

Rated 4.4 out of 5 stars
55
$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

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count

Rated 4.5 out of 5 stars
34
$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

Salifert Aquarium Ammonia Test Kit

Rated 4 out of 5 stars
7
$13.59 Chewy Price
$13.99 List Price
$12.91 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 out of 5 stars
36
$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 Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count

Rated 5 out of 5 stars
6
$16.78 Chewy Price
($0.10/ea) Price per Unit
$15.94 Autoship Price

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

Fritz Aquarium Water Master Test Kit

Rated 3.7 out of 5 stars
6
$36.74 Chewy Price
$48.99 List Price

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

Salifert Aquarium Carbonate Hardness/Alkalinity Test Kit

Rated 4 out of 5 stars
8
$14.39 Chewy Price
$16.46 List Price
$13.67 Autoship Price

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

Salifert Aquarium Calcium Test Kit

Rated 3.7 out of 5 stars
6
$16.79 Chewy Price
$18.81 List Price
$15.95 Autoship Price

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

Instant Ocean Sea Salt for Aquariums, 200-gal

Rated 4.7 out of 5 stars
404
$69.07 Chewy Price
($0.35/gl) Price per Unit
$81.29 List Price
$65.62 Autoship Price

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

API Replacement Test Tubes for Aquarium Liquid Test Kits, 24 count

Rated 3.2 out of 5 stars
21
$21.58 Chewy Price
($0.90/ea) Price per Unit
$41.98 List Price
$20.50 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 out of 5 stars
4
$29.99 Chewy Price
$50.99 List Price
$28.49 Autoship Price

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

Fluval Nitrate Fish Water Test Kit

Rated 3.7 out of 5 stars
3
$22.99 Chewy 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
36
$30.14 Chewy Price
($0.07/ea) Price per Unit
$48.98 List Price
$28.63 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
$18.74 Chewy Price
$18.99 List Price

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

Salifert Aquarium Copper Test Kit

Rated 5 out of 5 stars
1
$15.99 Chewy Price
$16.97 List Price
$15.19 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
$10.39 Chewy Price
$11.86 List Price
$9.87 Autoship Price

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

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