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$5.50
API Replacement Test Tubes
API TEST TUBES are compatible with any aquarium or pond water test kits and are perfect for testing more water parameters at one time. **Price fo...
View full details$5.50 -
Original Price $25.00Current Price $22.00
API PH TEST & ADJUSTER KIT(Includes pH down & pH up)
PH TEST & ADJUSTER KIT The API® pH TEST & ADJUSTER KIT not only allows you to easily and accurately test the pH level in your freshwater...
View full detailsOriginal Price $25.00Current Price $22.00Save 12% -
Original Price $26.00Current Price $23.00
API CALCIUM TEST KIT
CALCIUM TEST KIT Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, an...
View full detailsOriginal Price $26.00Current Price $23.00Save 12% -
Original Price $30.00Current Price $27.00
API® PHOSPHATE (PO4) TEST KIT
Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contr...
View full detailsOriginal Price $30.00Current Price $27.00Save 10% -
Original Price $22.00Current Price $20.00
API® GH & KH TEST KIT
When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habita...
View full detailsOriginal Price $22.00Current Price $20.00Sold out -
Original Price $15.00Current Price $13.00
API® 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 harmful effects of...
View full detailsOriginal Price $15.00Current Price $13.00Save 13% -
$32.00
API® AMMONIA TEST STRIPS
Use the API® AMMONIA TEST STRIPS as the quick and accurate way to test for the presence of ammonia. Kit reads 0 to 6 ppm of ammonia, and alerts yo...
View full details$32.00Sold out -
$26.00
API 5-IN-1 TEST STRIPS
API® 5-IN-1 TEST STRIPS are the quick and easy way to test the 5 most important aquarium water parameters – pH, KH, GH, nitrate, and nitrite – in ...
View full details$26.00Sold out -
Original Price $26.00Current Price $23.00
API AMMONIA TEST KIT
The API® AMMONIA TEST KIT measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia i...
View full detailsOriginal Price $26.00Current Price $23.00Save 12% -
$18.00
API NITRITE TEST KIT
Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it br...
View full details$18.00 -
$23.00
API® NITRATE TEST KIT
High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in a...
View full details$23.00 -
$24.00
API® pH TEST STRIPS - 25 tests
Use the API® pH TEST STRIPS as a quick and accurate way to test pH levels in your water. These test strips measure a wide range of pH, from 6.0 to...
View full details$24.00Sold out -
$72.00
API Freshwater Master Test Kit
FRESHWATER MASTER TEST KIT Measures the most important aquarium levels quickly and accurately Benefits: Tests pH, High Range pH, Ammonia, Nitrite...
View full details$72.00