Natural seawater concentration for magnesium is approximately 1,300 mg/L. The magnesium concentration in kalkwasser treated aquaria may be as low as 600 – 700 mg/L. In general, it is prudent...
Strontium occurs in natural seawater at a concentration of about 8 to 10 mg/L. It is chemically very similar to calcium, and many organisms incorporate it in their skeletons along...
Makes it easy to monitor the ammonium/ammonia level in fresh and marine water. Ammonium and ammonia mainly arise from fish waste. They are converted into each other depending on the...
Permanent CO2 monitoring. CO2 is among the most important nutrients for aquatic plants. Deficiencies can therefore have severe consequences. The sera CO2 long-term indicator was developed for permanently monitoring the...
Makes it easy to monitor the copper level in fresh and marine water. Copper (Cu) is very toxic especially for invertebrates such as shrimps and crustaceans, but fish also react...
Makes it easy to monitor the iron level in fresh and marine water. Iron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this...
