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Test Kits

Testing your aquarium water will help ensure it's clean, clear and healthy. Use API® test kits and test strips regularly to keep healthy conditions for your fish.

We here at Aquarium Spare Parts endeavour to keep all genuine Aqua One spare parts in stock. However if there is a part you are looking for but have not seen on our website please contact us at and we will do our best to source the part for you.

API Copper Test Kit - Freshwater/Saltwater

$28.95 $24.88

API Copper Test Kit - Freshwater/Saltwater Copper, a common treatment for many parasitic infections, must be monitored in an aquarium or a pond. The copper level can drop too low for the treatment to be effective, or can...

API GH/KH Hardness Test Kit

$24.95 $19.88

API GH/KH Hardness Test Kit  Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps...

API Glass Test Tube for Test Kit (3pk)

$9.95 $8.88

API Glass Test Tube for Test Kit (3pk) Replacement API Glass Test Tubes for liquid API Test kits or API Master test kits 1 x 85mm x 13mm diameter glass test tube with the a 5mL mark 1 X Plastic Cap          

API Nitrate Test Kit - Freshwater/Saltwater

$28.95 $23.88

API Nitrate Test Kit - Freshwater/Saltwater The Nitrate Test Kit tests for harmful nitrate levels from 0 to 160 ppm. Contains 90 tests  Includes colour chart  Step by step instructions  For use in...

API Nitrite Test Kit - Freshwater/Saltwater

$24.95 $21.88

API Nitrite Test Kit - Freshwater/Saltwater Taking a few minutes each week to maintain and monitor aquarium conditions is the key to a healthy aquarium.   Nitrite is produced in the aquarium by fish waste and...

API pH High Range Test Kit - Fresh/Saltwater

$17.95 $14.88

API pH High Range Test Kit - Fresh/Saltwater Test pH Levels in Fresh/Saltwater Aquariums  Scientifically accurate for professional results Monitors pH to maintain healthy freshwater conditions Benefits:  Fast,...

API pH Test Strips (25pk)

$29.95 $27.88

API Deluxe pH Test & Adjuster Kit  A complete kit to measure and adjust pH. Tests pH levels from 6.0 to 7.6 and includes bottles of pH Up and pH Down to modify aquarium water pH to desired levels. Contains 25 test...