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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 Ammonia Care Kit (3 pack)

$57.85 $47.00

API Ammonia Care Kit (3 pack) INCLUDES: API Ammo-Carb 284gm The dual-action API® Ammo-Carb mixes Ammo-Chips and Activated Filter Carbon to rid aquarium water of dissolved organic materials, ammonia, colors, and odors,...

API Water Change Maintenance Kit (3 pack)

$61.85 $49.00

API Water Change Maintenance Kit (3 pack) INCLUDES: API Freshwater Mini pH Test Kit The API® pH Test Kit monitors pH to maintain healthy freshwater conditions in your tank. pH control is imperative to prevent the...

API Calcium Test Kit - Freshwater/Saltwater

$32.95 $26.88

API Calcium Test Kit - Freshwater/Saltwater Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to...

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...