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Potassium: at least as important as iron in a planted aquarium! Potassium is a macronutrient and at least as important as iron for a good and healthy plant growth in a fresh water aquarium.
14,88 € * More information
For approx. 420°dGH.
10,28 € * More information
Makes it easy to monitor the carbonate hardness in fresh and salt water. For approx. 390°dKH.
10,28 € * More information
Nitrite (NO2) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration. Sufficient for approx. 75 measurements.
12,28 € * More information
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, however, provides nutrition for unwanted algae.
14,08 € * More information
Nitrate (NO3) is an indicator for severe organic pollution. Sufficient for approx. 60 measurements.
13,58 € * More information
Iron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this may be due to lacking iron.
13,98 € * More information
Makes it easy to monitor the ammonium/ammonia level in fresh and marine water
13,38 € * More information
Permanent CO2 monitoring. CO2 is among the most important nutrients for aquatic plants. Deficiencies can therefore have severe consequences.
14,08 € * More information
Permanent CO2 monitoring. CO2 is among the most important nutrients for aquatic plants. Deficiencies can therefore have severe consequences.
9,38 € * More information