Water Tests Tetra

Tetra Test 7in1

7 important water parameters with just 1 test
quick and easy to use
early detection of problems

The Tetra Test 7in1 test strips allow you to check the water quality in your aquarium quickly, easily, and reliably. The test strips measure the seven most important water parameters: pH value, carbonate hardness (KH), total hardness (GH), nitrite (NO2), nitrate (NO3), chlorine (Cl2), and now also CO2 content. By combining the pH and KH values, the CO2 content can be easily read using the enclosed CO2 table.

14.59 €^*

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Tetra Test NO2 -Nitrite-

exact determination of the nitrite content

5.0 (1)

Tetra Test NO2 to the reliable and exact determination of the nitrite content in fresh and sea water aquaria. Organic nitrogenous substances in the aquarium, such as fish excreta and food remains, are decomposed in stages: first into toxic ammonia, then into nitrite and finally into nitrate (nitrogen cycle). A nitrite content (NO2) of over 0.3 mg/l will cause your fish long-term harm.

10.49 €^*

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Tetra Test CO2 -Carbon dioxide-

exact determination of the CO²-Content

5.0 (1)

Tetra Test CO2 measures the carbon dioxide value reliably and precisely. Just like fish, plants also breathe by absorbing oxygen (O2) and emitting carbon dioxide (CO2). Under the influence of light, however, plants can carry out a process, which is known as photosynthesis.

12.59 €^*

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Tetra Test Fe -Iron-

exact determination of the iron content

5.0 (1)

Tetra Test Fe to the reliable and exact determination of the iron content in fresh water aquaria. + for all freshwater aquariums + for a large number of analyses + excellent long-term stability + Packing contents are enough for 35 tests.

19.95 €^*