Aquarium water testing (drops)

With this Sera Aqua-Test Box you can easily determine a wide range of water parameters. Direct and reliable results. With this box you can determine n...

Makes it easy to monitor the total hardness. For approx. 420°dGH.

The Sera No3 (nitrate) test is to quickly and easily determine the nitrate level in your water. Good for +- 60 tests.

Sera test set to easily and quickly determine four different water parameters. This set contains everything to test the pH, kH, gH and NO2.

Makes it easy to monitor the carbonate hardness in fresh and salt water. For approx. 390°dKH.

With the Sera No2 (nitrite) test it is easy to determine the No2 level of your water. Easy to use and instant results. Good for +- 75 tests.

Ammonium and ammonia mainly arise from fish waste. While ammonium is mostly harmless, ammonia is toxic to fish. Sufficient for approx. 60 measurements...

The sera O2-Test monitors the actual oxygen level in the water within minutes and allows for acting in time up on oxygen deficiency.

Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements.

The Sera Fe (iron) test is to quickly and easily determine the iron level in your water. Good for +- 75 tests.

The Sera Cu (copper) test is to quickly and easily determine the copper level in your water. Good for +- 50 tests.

CO2 is one of the most important nutrients for aquarium plants. With the Co2 continuous test of Sera, you can easily and quickly determine the CO2 con...

Both fish waste and feeding are possible causes for phosphate introduction into the water. A part is taken up as a nutrient by plants, an excess, howe...

A small amount of chlorine in the aquarium water is not harmful, but higher concentrations can quickly lead to the death of shrimps, crayfish and fish...

Silicate (SiO3) supports the growth of diatoms in marine and freshwater aquariums. The sera silicate-Test allows monitoring the silicate level reliabl...