60-second test for simultaneous determination of the 5 most important water values:
pH, carbonate hardness, total hardness, nitrite, nitrate

• 5 test sticks
• immediate indication as to whether the pond water is compatible with fishes requirements (...)

displays possible dangerous situations within minutes.

Oxygen is essential for all living creatures in aquariums and garden ponds. Even the plant life requires oxygen during the night. 8:::9

The sera nitrite-Test makes it easy to determine the level of toxic nitrite.

• For approx. 75 measurements in fresh and salt water.

The Sera nitrite-test: Use during regular maintance to check the nitrite level in fresh-and saltwater aquariums and garden ponds. (...)

Fertilization according to the requirements of the plants is only possible if the iron level is monitored.

• For approx. 75 measurements

Compare the test results with the supplied color chart to obtain the iron level. (...)

For regularly checking the nitrate level in aquarium water.

• ca. 60 Tests
• Detect unwanted nitrate-simply,quickly and reliably by means of the sera-Test.
• Nitrate levels exceeding 50mg/l (ppM) promotes heavy algae growth and also sunts the growth of fish and plants. (...)

Makes it easy to monitor the pH value in fresh and salt water and ponds.

• For approx. 100 measurements.

To achieve a stable pH value, ensure to maintain the carbonate hardness of at least 4°dKH. (...)

Makes it easy to monitor the total hardness.

• ca. 420° dGH.

The total number of sera gH-Test reagent drops consumed - when the color changes from red to green, provides the total hardness (in °dGH) value. (...)

For approx. 60 measurements.

• Phosphate strongly promotes algae growth.
• Thus, it should be regularly checked by means of the sera phosphate-Test and be removed in freshwater with sera phosvec.
• The phosphate level should be below 1 mg/l (ppm) in freshwater resp. 0.1 mg/l (ppm) in saltwater. (...)

For monitoring chlorine in aquarium water.

• Chlorine is rapidly removed by sera chlorvec.

The sera chlorine-Test tells you whether the chlorine level is dangerous by simply comparing colors. (...)