We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestNutrient Test Kitsof January 2026

112M consumers helped this year.

1

Palintest Lumiso Pooltest 6 from Test All Water

Palintest Lumiso Pooltest 6 from Test All Water

Palintest Lumiso Pooltest 6 from Test All Water

Palintest

9.8

Buy it on Amazon

12% off

2

API 800 Test Freshwater Aquarium Water Master Test Kit

API 800 Test Freshwater Aquarium Water Master Test Kit

API 800 Test Freshwater Aquarium Water Master Test Kit

API

9.6

Buy it on Amazon

3

NT Labs Aquarium Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness and Carbonate Hardness), Aquarium Kit, Accurate Results, Up to 200 Tests Combine, Liquid Tests

NT Labs Aquarium Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness and Carbonate Hardness), Aquarium Kit, Accurate Results, Up to 200 Tests Combine, Liquid Tests

NT Labs Aquarium Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness and Carbonate Hardness), Aquarium Kit, Accurate Results, Up to 200 Tests Combine, Liquid Tests

NT Labs

9.3

Buy it on Amazon

4

Hanna Instruments High Range Nitrate Checker HI 782

Hanna Instruments High Range Nitrate Checker HI 782

Hanna Instruments High Range Nitrate Checker HI 782

Hanna Instruments

9.0

Buy it on Amazon

5

JBL Water Test Kit, With 11 tests, For saltwater aquariums, ProAquaTest Lab Marin

JBL Water Test Kit, With 11 tests, For saltwater aquariums, ProAquaTest Lab Marin

JBL Water Test Kit, With 11 tests, For saltwater aquariums, ProAquaTest Lab Marin

JBL

8.7

Buy it on Amazon

OtherRelated productsUp to 3% off

Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

LaMotte N-P-K Soil Test Kit

LaMotte N-P-K Soil Test Kit

JBL Water Test Kit, With 6 tests and accessories, For fresh water aquariums, Refill, ProAquaTest Combi Set Plus NH4

JBL Water Test Kit, With 6 tests and accessories, For fresh water aquariums, Refill, ProAquaTest Combi Set Plus NH4

Labsales Hot Tub, Spa and Pool Kit One Test Tablet Refill, 30 dpd1, dpd one, Chlorine Test Tablets And 30 pH Phenol Red Test Tablets For Comparator Testers

Labsales Hot Tub, Spa and Pool Kit One Test Tablet Refill, 30 dpd1, dpd one, Chlorine Test Tablets And 30 pH Phenol Red Test Tablets For Comparator Testers

6

Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter, Conductivity Measure in Solution, Increased Measurement Range

Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter, Conductivity Measure in Solution, Increased Measurement Range

Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter, Conductivity Measure in Solution, Increased Measurement Range

Bluelab

8.4

Buy it on Amazon

7

NT Labs Pond Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness & Carbonate Hardness), Pond Water Test Kit, Accurate Results, Up to 200 Tests Combined, Liquid Test

NT Labs Pond Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness & Carbonate Hardness), Pond Water Test Kit, Accurate Results, Up to 200 Tests Combined, Liquid Test

NT Labs Pond Lab Multi-Test Kit (6 Key Parameters - Ammonia, Nitrite, Nitrate, pH, General Hardness & Carbonate Hardness), Pond Water Test Kit, Accurate Results, Up to 200 Tests Combined, Liquid Test

NT Labs

8.1

Buy it on Amazon

8% off

8

API GH & KH TEST KIT Freshwater Aquarium Water Test Kit 1-Count

API GH & KH TEST KIT Freshwater Aquarium Water Test Kit 1-Count

API GH & KH TEST KIT Freshwater Aquarium Water Test Kit 1-Count

API

7.8

Buy it on Amazon

40% off

9

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box

API

7.5

Buy it on Amazon

10

Palintest Contour Comparator Kit Chlorine 0-5mg/l/pH from Test All Water

Palintest Contour Comparator Kit Chlorine 0-5mg/l/pH from Test All Water

Palintest Contour Comparator Kit Chlorine 0-5mg/l/pH from Test All Water

Palintest

7.2

Buy it on Amazon