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Aquarium Water Test Kits

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Original price $22.95 - Original price $66.80
Original price
$22.95 - $66.80
$22.95 - $66.80
Current price $22.95

Tetra EasyStrips Aquarium Tests Ammonia and 6-in-1 Strips

Tetra
Only 5 left!

Tetra EasyStrips Ammonia Aquarium Test Strips provide, fast, accurate and easy testing for both fresh and saltwater aquariums. No vial is needed; j...

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Original price $22.95 - Original price $66.80
Original price
$22.95 - $66.80
$22.95 - $66.80
Current price $22.95
Original price $11.78 - Original price $96.45
Original price
$11.78 - $96.45
$11.78 - $96.45
Current price $11.78

Tetra EasyStrips 6-in-1 Aquarium Test Strips

Tetra
28 in stock

Tetra EasyStrips 6-in-1 Aquarium Test Strips provide complete, all-in-one testing in just 60 seconds. Each strip performs medical and scientific qu...

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Original price $11.78 - Original price $96.45
Original price
$11.78 - $96.45
$11.78 - $96.45
Current price $11.78
Original price $16.95 - Original price $16.95
Original price
$16.95
$16.95 - $16.95
Current price $16.95

Seachem pH Alert Sensor for Freshwater

Seachem
Out of stock

Seachem pH Alert Reader is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes colo...

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Original price $16.95 - Original price $16.95
Original price
$16.95
$16.95 - $16.95
Current price $16.95
Sold out
Original price $33.94 - Original price $33.94
Original price
$33.94
$33.94 - $33.94
Current price $33.94

Seachem One Year Combo Alert

Seachem
16 in stock

Seachem One Year Combo Alert uses Seachem water sensor technology to continuously monitor ammonia and freshwater pH in your aquarium for an entire ...

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Original price $33.94 - Original price $33.94
Original price
$33.94
$33.94 - $33.94
Current price $33.94
Original price $7.99 - Original price $22.98
Original price
$7.99 - $22.98
$7.99 - $22.98
Current price $7.99

Seachem Ammonia Alert Sensor for Fresh and Saltwater Aquariums

Seachem
113 in stock

Seachem Ammonia Alert is an innovative color device for continuously detecting and monitoring free ammonia in aquariums. A sensor changes from yell...

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Original price $7.99 - Original price $22.98
Original price
$7.99 - $22.98
$7.99 - $22.98
Current price $7.99
Original price $9.29 - Original price $48.99
Original price
$9.29 - $48.99
$9.29 - $48.99
Current price $9.29

Seachem Alert Series Alert Combo

Seachem
15 in stock

The Seachem Alert Combo pack is a revolutionary way to keep tabs on your aquariums essential levels. This unique tester provides continuous pH and ...

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Original price $9.29 - Original price $48.99
Original price
$9.29 - $48.99
$9.29 - $48.99
Current price $9.29
Original price $12.99 - Original price $33.99
Original price
$12.99 - $33.99
$12.99 - $33.99
Current price $12.99

API pH Test Strips for Freshwater and Saltwater Aquariums

API
9 in stock

Aquarium Pharmaceuticals pH Test Strips. Test your aquarium water for pH levels for optimal health! Testing your water quality can be complicated, ...

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Original price $12.99 - Original price $33.99
Original price
$12.99 - $33.99
$12.99 - $33.99
Current price $12.99
Original price $7.99 - Original price $20.49
Original price
$7.99 - $20.49
$7.99 - $20.49
Current price $7.99

API pH Test Kit for Freshwater Aquariums

API
35 in stock

Aquarium Pharmaceuticals Fresh PH Mini Kit contains dropper bottle for accurate dispensing of liquid test solution, easy to read instructions and c...

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Original price $7.99 - Original price $20.49
Original price
$7.99 - $20.49
$7.99 - $20.49
Current price $7.99
Original price $12.99 - Original price $32.99
Original price
$12.99 - $32.99
$12.99 - $32.99
Current price $12.99

API pH Test and Adjuster Kit for Freshwater Aquariums

API
7 in stock

Aquarium Pharmaceuticals pH Test and Adjuster Kit monitors your aquarium water pH with extreme accuracy, and includes API pH UP and pH DOWN to perf...

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Original price $12.99 - Original price $32.99
Original price
$12.99 - $32.99
$12.99 - $32.99
Current price $12.99
Original price $14.99 - Original price $38.49
Original price
$14.99 - $38.49
$14.99 - $38.49
Current price $14.99

API Phosphate Test Kit for Freshwater and Saltwater Aquariums

API
41 in stock

Aquarium Pharmaceuticals Phosphate Test Kit allows you to easily and accurately measure the phosphate level and maintain a healthy aquarium or pond...

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Original price $14.99 - Original price $38.49
Original price
$14.99 - $38.49
$14.99 - $38.49
Current price $14.99
Original price $11.99 - Original price $30.49
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$11.99 - $30.49
$11.99 - $30.49
Current price $11.99

API Nitrite NO2 Test Kit Helps Prevent Fish Loss in Freshwater and Saltwater Aquariums

API
43 in stock

API Nitrite NO2 Test Kit Helps Prevent Fish Loss in Freshwater and Saltwater Aquariums. Fast, accurate and easy to use. This Fresh Water Nitrite Te...

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Original price $11.99 - Original price $30.49
Original price
$11.99 - $30.49
$11.99 - $30.49
Current price $11.99
Original price $13.99 - Original price $29.99
Original price
$13.99 - $29.99
$13.99 - $29.99
Current price $13.99

API Nitrate Test Kit for Fresh and Saltwater Aquariums

API
86 in stock

Aquarium Pharmaceuticals Fresh And Salt Water Nitrate Test Kit measures nitrate (NO3) in freshwater and saltwater aquariums. Nitrate buildup in aqu...

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Original price $13.99 - Original price $29.99
Original price
$13.99 - $29.99
$13.99 - $29.99
Current price $13.99
Original price $39.99 - Original price $77.99
Original price
$39.99 - $77.99
$39.99 - $77.99
Current price $39.99

API Marine Saltwater Master Test Kit Tests High Range pH, Ammonia, Nitrite and Nitrate

API
Only 4 left!

The API Saltwater Master Test Kit for marine aquariums contains everything you need to measure the most important levels in your water with scienti...

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Original price $39.99 - Original price $77.99
Original price
$39.99 - $77.99
$39.99 - $77.99
Current price $39.99
Original price $39.99 - Original price $77.99
Original price
$39.99 - $77.99
$39.99 - $77.99
Current price $39.99

API Marine Reef Master Test Kit Tests Calcium, Carbonate Hardness, Phosphate and Nitrate

API
16 in stock

The API Marine Reef Master Test Kit tests the most important aquarium levels. Tests Calcium, Carbonate hardness, phosphate and Nitrate levels quick...

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Original price $39.99 - Original price $77.99
Original price
$39.99 - $77.99
$39.99 - $77.99
Current price $39.99
Original price $8.99 - Original price $15.49
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$8.99 - $15.49
$8.99 - $15.49
Current price $8.99

API KH Carbonate Hardness Test Kit for Fresh and Saltwater Aquariums

API
78 in stock

Aquarium Pharmaceuticals Fresh/Salt Water Carbonate Test Kit measures carbonate hardness, the measure of carbonate and bicarbonate concentrations i...

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Original price $8.99 - Original price $15.49
Original price
$8.99 - $15.49
$8.99 - $15.49
Current price $8.99
Original price $9.49 - Original price $22.49
Original price
$9.49 - $22.49
$9.49 - $22.49
Current price $9.49

API High Range pH Test Kit for Goldfish, Marine and African Cichlids

API
13 in stock

Aquarium Pharmaceuticals' High Range pH Test Kit helps you ensure a healthy environment for your fish in both fresh and saltwater aquariums. Proper...

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Original price $9.49 - Original price $22.49
Original price
$9.49 - $22.49
$9.49 - $22.49
Current price $9.49
Original price $11.99 - Original price $30.49
Original price
$11.99 - $30.49
$11.99 - $30.49
Current price $11.99

API GH and KH General and Carbonate Hardness Test Kit for Freshwater Aquariums

API
72 in stock

The API Freshwater Hardness GH and KH Test Kit tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Keep...

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Original price $11.99 - Original price $30.49
Original price
$11.99 - $30.49
$11.99 - $30.49
Current price $11.99
Original price $35.99 - Original price $76.99
Original price
$35.99 - $76.99
$35.99 - $76.99
Current price $35.99

API Freshwater Master Test Kit

API
58 in stock

API Freshwater Master Test Kit is a complete test kit for testing tap and aquarium water. Tests five different potentially dangerous water conditio...

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Original price $35.99 - Original price $76.99
Original price
$35.99 - $76.99
$35.99 - $76.99
Current price $35.99
Original price $12.49 - Original price $27.99
Original price
$12.49 - $27.99
$12.49 - $27.99
Current price $12.49

API Copper Cu+ Test Kit Monitor Copper when Medicating in Freshwater and Saltwater Aquariums

API
12 in stock

Aquarium Pharmaceuticals' Copper Test Kit tests copper levels in water from 0 to 4 ppm, and measures both free and chelated copper. Always monitor ...

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Original price $12.49 - Original price $27.99
Original price
$12.49 - $27.99
$12.49 - $27.99
Current price $12.49
Original price $13.99 - Original price $34.49
Original price
$13.99 - $34.49
$13.99 - $34.49
Current price $13.99

API Calcium Ca2+ Test Kit for Healthy Coral Growth

API
27 in stock

Aquarium Pharamceuticals Calcium Test Kit Liquid allows you to easily and accurately measure the calcium level and maintain a healthy aquarium.CA2+...

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Original price $13.99 - Original price $34.49
Original price
$13.99 - $34.49
$13.99 - $34.49
Current price $13.99
Original price $16.99 - Original price $44.99
Original price
$16.99 - $44.99
$16.99 - $44.99
Current price $16.99

API Ammonia Test Strips NH3 / NH4 for Freshwater and Saltwater Aquariums

API
19 in stock

Aquarium Pharmaceuticals Aquarium Ammonia Test Strips. Test the ammonia levels in your aquarium for optimal health! Testing your water quality can ...

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Original price $16.99 - Original price $44.99
Original price
$16.99 - $44.99
$16.99 - $44.99
Current price $16.99
Original price $13.99 - Original price $39.99
Original price
$13.99 - $39.99
$13.99 - $39.99
Current price $13.99

API Ammonia NH3/NH4+ Test Kit

API
7 in stock

The API Ammonia Test Kit measures ammonia levels in both fresh and saltwater aquariums. Ammonia, the number one killer of tropical fish, is continu...

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Original price $13.99 - Original price $39.99
Original price
$13.99 - $39.99
$13.99 - $39.99
Current price $13.99
Original price $6.99 - Original price $87.99
Original price
$6.99 - $87.99
$6.99 - $87.99
Current price $6.99

API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater Aquariums

API
54 in stock

Aquarium Pharmaceuticals 5 in 1 Test Strips test aquarium water levels for optimal health! This master test kit allows you to simplify your testing...

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Original price $6.99 - Original price $87.99
Original price
$6.99 - $87.99
$6.99 - $87.99
Current price $6.99