 | The sera aqua test-box marin is a profi test set for exact determining of 8 important water values in marine water. The set contains the tests:-pH value-KH carbonate hardness-NO² nitrite-NO³ nitrate-NH4/NH3 ammonia/ammonium-PO4 phosphate-Ca calcium-Cu copper- coloure charts and detailled manual.
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Sera aqua test-box Marin
complete set for marine water
contains the 8 most important water tests
fast and accurate measurement results
| 75.95 €* |
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 | The sera aqua test-box is a profi test set for exact determining of 9 important water values in fresh water aquarium or garden pond. All important tests are included.
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 | sera aqua-test set for the exact determination of the four importent water values in aquarium or garden pond: total hardness (GH), carbonate hardness (KH), pH value and nitrite (NO²) content. With detailled instructions for use and cloure chart.
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 | The Sera Ammonia Test reliably measures the total concentration of ammonium (NH4+) and ammonia (NH3) in the water. Combined with the pH value, this determines the actual ammonia content. This helps identify spikes in ammonia levels and assess the biological filter performance.
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Sera Ammonia Test
Determination of the total concentration
of ammonium (NH4+) and ammonia (NH3)
for approximately 60 measurements
| 11.85 €* |
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 | Sera Nitrite Test for the xact determination of the nitrite content (NO2) in fresh and marine water. The test ist sufficient for approx. 75 test.
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Sera Nitrite Test
highly accurate nitrite test
easy to use
for approximately 75 tests
| 8.85 €* |
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 | Sera Nitrate Test for the exact determination of the nitrate content (NO3) in fresh and marine water. The test is sufficient for approx. 60 tests.
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Sera Nitrate Test
for accurate determination of NO3 levels
easy and safe to use
for approximately 60 measurements
| 11.49 €* |
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 | Sera CO2 test carbone dioxide for the permanent testing of the CO2 value in the aquarium water. The optimal CO2 content is very important for a good plant growth and the right living parameters of your fish. The package content is sufficient for approx.
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Sera CO2 permanent test
for continuous monitoring of CO2 levels
with an elegant glass container
with 90 fillings
| 11.95 €* |
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 | Sera Test-Set Ca for the exact and reliable determination of the calcium content in sea water. In reef aquariums, calcium is required by ornamental algae, corals, and other invertebrates. For healthy coral growth, the calcium level in marine aquariums should be about 420 mg/l (ppm).
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Sera Test Ca Calzium
determining the calcium content
in a saltwater aquarium
for approx. 7,500 mg of calcium
| 10.95 €* |
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 | Sera Test Cu Copper for the exact determination of the copper content in the aquarium water. The test is sufficient for approx. 50 test.
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 | Sera Iron Test (fe) for the exact determination of the iron content in the aquarium water. The test is sufficient for approx. 75 test.
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Sera Iron Test
Iron Test for Freshwater
easy to use
for approx. 75 tests
| 11.85 €* |
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 | Sera Phosphate Test (PO4) for approx. 60 measurements in fresh and marine water. Phosphate strongly promotes algae growth.
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Sera Phosphate Test
Phosphate Test for Freshwater & Saltwater
easy to use
for approx. 60 tests
| 11.85 €* |
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 | Sera test Cl chloride for determining the chloride concentration in fresh and marine water or tap water. Chloride is corrosive and damages the fishs mucuos membrane. The sera test Cl is sufficient for approx.
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Sera Chlorine Test
chlorine test for Freshwater & Saltwater
for approx. 45 tests
quick and easy to use
| 7.85 €* |
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 | Sera Test GH for the exact determination of the total hardness in fresh or marine water. The test is sufficient for 420 °dGH. Most ornamental fish kept in aquariums originate from areas with soft water.
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 | Sera KH Test for the exact determination of the carbonate hardness in fresh or marine water. The test is sufficient for 390 °dKH. In a community aquarium the carbonate hardness should be between 5 and 10 °dkH (saltwater 8 to 12 °dkH) in order to guarantee sufficient pH value stabilization.
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 | Sera pH test for approx. 80 measurements in fresh or marine water. A stable pH value is crucial for the health of fish, invertebrates, plants, and filter bacteria.
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Sera pH Test
easy-to-use pH test
for freshwater and saltwater
for approx. 100 measurements
| 6.39 €* |
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 | Indicator solution for refilling the Sera CO2 - permanent test.
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 | In case of high calcium levels in saltwater aquaria the reagent 3 in the sera Ca-Test will be used up, while the remaining reagents still contain sufficient liquid. With the refill reagent 3 you can continue using your sera Ca-Test.
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 | Sera oxygen test O2 to the reliable and exact determination of the oxygen content in the fresh and sea water. You can see the oxygen content of the aquarium water within minutes. Oxygen has a crucial function in aquariums and garden ponds.
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Sera Oxygen Test
precise oxygen test
for freshwater and saltwater
for approximately 60 measurements
| 11.85 €* |
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 | Sera test magnesium Mg to the reliable and exact determination of the magnesium content in the sea water. Magnesium fulfills two key functions in marine aquariums: it keeps calcium in solution and thus in a bioavailable form, and it is an essential nutrient for calcareous red algae and soft corals, which require it to form their spicules. For a stable and healthy reef aquarium, the magnesium level should be about 1,300 mg/l (ppm).
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 | Silicate supports the growth of diatoms in salt and freshwater aquariums. The sera silicate test allows you to monitor the silicate level reliably. Silicate levels above 1 mg/j should be bound with sera silicate clear.
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 | With the Quick Test 6in1, sera offers the optimal possibility to check the most important water values (pH value, carbonate hardness, total hardness, nitrate, nitrite and chlorine) in the aquarium quickly and easily with only one test strip.
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Sera water tests help you reliably monitor the most important water parameters in your aquarium and detect changes early on. Regular water analysis is particularly important for keeping fish, shrimp, plants, and filter bacteria healthy in the long term. With sera tests, key parameters such as pH, carbonate hardness, total hardness, nitrite, nitrate, ammonium/ammonia, phosphate, iron, copper, or chlorine can be specifically checked depending on the test kit.
The product range includes practical single tests for specific water parameters as well as complete test kits and test cases for more comprehensive monitoring. Compact sets covering the most important basic parameters are ideal for beginners, while larger test kits enable a more detailed analysis for freshwater aquariums, saltwater aquariums, or garden ponds. Many sera water tests are characterized by a high number of tests per kit: Depending on the test, numerous measurements are possible, resulting in a favorable price-to-use ratio.
Sera water tests are a useful addition to regular aquarium maintenance—for new setups, after water changes, in case of algae problems, unusual fish behavior, or for ongoing monitoring of stable water conditions.
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