Aquarium Test Kits

Ensure a healthy aquatic environment with accurate aquarium test kits that measure pH, ammonia, nitrite, nitrate, and more. Perfect for freshwater and saltwater tanks, our kits help you monitor water quality and maintain optimal conditions for your fish and plants. Easy to use and reliable.

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NITRATE 90-Test Freshwater and Saltwater Aquarium Water Test Kit
90 Tests180 Tests

NITRATE 90-Test Freshwater and Saltwater Aquarium Water Test Kit

$19.95 – $21.05
Contains one (1) API NITRATE 90-Test Freshwater and Saltwater Aquarium Water Test Kit, including 2 bottles of testing solution, 2 color cards and 1 test tube with cap Helps monitor...
Aquarium Test Strips: 200CT 9 in 1 Quick & Accurate Fish Tank Water Testing Kit for Freshwater Pond Testing Nitrate Nitrite Hardness Free Chlorine Ph Carbonate Total Alkalinity Copper Iron

Aquarium Test Strips: 200CT 9 in 1 Quick & Accurate Fish Tank Water Testing Kit for Freshwater Pond Testing Nitrate Nitrite Hardness Free Chlorine Ph Carbonate Total Alkalinity Copper Iron

$27.14
Professional Aquarium Test Strips: BACNUNN aquarium water test kit is the result of 21 years of continuous upgrading and improvement in our labs, and is the most accurate aquarium test...
HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) -

HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) -

$29.21
Pre-made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability Prepared with high purity chemicals The HI772-26 are the replacement...
HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)

HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)

$36.74
Pre-made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability The HI782-25 are the replacement reagents for the HI782 Marine...
Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit

Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit

$22.09 – $23.15
Superior glass CO2 Drop Checker with the most accurate and reliable 4dKH solution in the market Quick and easy to setup. Simply fill the drop checker with the provided solution...
Ammonia Alert
9 Gm9 Gm (Pack Of 2)

Ammonia Alert

$17.04 – $34.38
Sachem sensor Technology No Strips, no tests, just constant readings For marine and freshwater use Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia....
Stability - for Freshwater and Marine Aquariums 250Ml

Stability - for Freshwater and Marine Aquariums 250Ml

$22.62
TANK STABILIZATION: Seachem Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". TREATMENT: Stability...
Easystrips, Complete Aquarium Test Strips, Water Testing, 25 Count
25-Count150-Count

Easystrips, Complete Aquarium Test Strips, Water Testing, 25 Count

$19.99 – $87.29
ALL-IN-ONE TESTING KIT: Everything you need to test your aquarium water. 7 DIFFERENT TESTS WITH 1 STRIP: Just one test monitors ammonia, nitrates, nitrites, water hardness, chlorine, alkalinity and pH...
Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

$29.88
Measure salt water or salinity of water, ideal for aquariums and marine monitoring. Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand. Features automatic temperature compensation. Comes...
Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation (ATC)

Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation (ATC)

$27.14
MEASURES ON 2 SCALES - Aquarium Refractometer features specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰ , allow to get two results in different units by one test WIDELY...
Aquarium Salt Tester -Pool Salt Tester, Versatile 5 In1 Salinity, PH, TDS, EC, and Temperature Meter, Digital Salinity Tester for Saltwater Aquarium, Accurate Salinity Meter,Green

Aquarium Salt Tester -Pool Salt Tester, Versatile 5 In1 Salinity, PH, TDS, EC, and Temperature Meter, Digital Salinity Tester for Saltwater Aquarium, Accurate Salinity Meter,Green

$50.41
√ Precise Digital PH Meter for Water: The pH tester digital function of the WEBEST ph tester water allows you to accurately measure the acidity or alkalinity of your water....
Digital Salinity Meter 3-In-1 Saltwater Tester – Specific Gravity, Salinity & Temperature Pen Hydrometer, High Accuracy Water Quality Tester for Aquarium, Marine, Pool, Hydroponics, Aquaculture

Digital Salinity Meter 3-In-1 Saltwater Tester – Specific Gravity, Salinity & Temperature Pen Hydrometer, High Accuracy Water Quality Tester for Aquarium, Marine, Pool, Hydroponics, Aquaculture

$73.67
Smart & Easy to Use – Backlit LCD screen for clear readings, automatic temperature compensation (ATC), and audible beeps at the start and finish of testing. Designed for quick, hassle-free...