10 Best Aquarium Water Test Kits & Strips 2025: According to Reviews | Chewy

The 10 Best Aquarium Water Test Kits & Strips

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How we created this aquarium water test kits & strip list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best aquarium water test kits & strip.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best aquarium water test kits & strips.

Key aquarium water test kits & strip considerations

Accuracy

Durability

Ease of Use

Range of Testing

1
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count
API Freshwater Aquarium Master Test Kit, 800 count

API Freshwater Aquarium Master Test Kit, 800 count

Rated 4.7 out of 5 stars
280
$35.95Chewy Price
($0.05/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.7/5
Excellent

Durability

4.8/5
Excellent

Ease of Use

4.9/5
Excellent

Range of Testing

4.6/5
Excellent

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Freshwater

Fish Type

Tropical Freshwater, Cichlid, Goldfish, Betta...
2
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count
Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 25 count

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

Rated 4.6 out of 5 stars
131
$7.13Chewy Price
($0.29/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.4/5
Great

Durability

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Range of Testing

4.3/5
Great

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Betta, Cichlid, Goldfish...
3
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester
SunGrow Refractometer for Saltwater Aquarium & Reef Tank, Koi Pond Water Salinity Meter Tester

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

Rated 4.5 out of 5 stars
27
$14.70Chewy Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.0/5
Great

Durability

4.2/5
Great

Ease of Use

4.4/5
Great

Range of Testing

4.3/5
Great

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Cichlid, Marine Fish, Marine Invertebrate, Bottom Feeder
4
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count
API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count

API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.4 out of 5 stars
116
$12.98Chewy Price
($0.52/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.6/5
Excellent

Durability

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Range of Testing

4.7/5
Excellent

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Marine Fish, Betta, Goldfish...
5
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit

API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit

Rated 4.7 out of 5 stars
61
$11.91Chewy Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.4/5
Great

Durability

4.2/5
Great

Ease of Use

4.4/5
Great

Range of Testing

4.6/5
Excellent

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Freshwater

Fish Type

Tropical Freshwater, Betta, Goldfish, Bottom Feeder...
6
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count
API pH Freshwater Aquarium Test Kit, 250 count

API pH Freshwater Aquarium Test Kit, 250 count

Rated 4.6 out of 5 stars
72
$7.98Chewy Price
($0.04/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.7/5
Excellent

Durability

4.8/5
Excellent

Ease of Use

4.8/5
Excellent

Range of Testing

4.4/5
Great

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Freshwater

Fish Type

Tropical Freshwater, Betta, Cichlid, Goldfish...
7
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count
Aqueon 7-in-1 Aquarium Test Strips, 50 count

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

Rated 4.4 out of 5 stars
36
$8.73Chewy Price
($0.18/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.3/5
Great

Durability

4.1/5
Great

Ease of Use

4.3/5
Great

Range of Testing

4.8/5
Excellent

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Marine Fish
8
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count

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

Rated 4.7 out of 5 stars
37
$11.88Chewy Price
($0.14/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.5/5
Great

Durability

4.7/5
Excellent

Ease of Use

4.7/5
Excellent

Range of Testing

4.4/5
Great

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Marine Fish, Betta, Goldfish...
9
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

Rated 4.8 out of 5 stars
41
$13.16Chewy Price
($0.11/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.7/5
Excellent

Durability

4.8/5
Excellent

Ease of Use

4.7/5
Excellent

Range of Testing

4.6/5
Excellent

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater, Pond

Fish Type

Discus, Marine Invertebrate, Goldfish, Bottom Feeder
10
Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count
Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count
Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count
Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count
Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 100 count

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

Rated 4.9 out of 5 stars
27
$33.49Chewy Price
($0.34/ea)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Accuracy

4.5/5
Great

Durability

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Range of Testing

4.5/5
Great

Is this aquarium water test kits & strip right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Marine Fish