Why is iodine required? Corals might require iodine as a de-toxifier, as a protection against uv-radiation and as a natural defense against many parasites. Iodine is present in NSW (Natural Sea Water) in a very low concentratio...
The importance of trace elements By trace elements we usually mean elements that are present in natural seawater in a concentration lower than approx. 1 mg/L or ppm. Some of these elements are essential to make many biological p...
Salifert KH/Alkalinity Profi-Test
Calcium is not the only substance needed to form the skeletal material of corals and allow calcareous algae to grow. Carbonate and bicarbonate are also needed and these two substances can ha...
Salifert Nitrite Profi-Test
In a properly cycled aquarium, nitrite is converted to nitrate and then, if there are areas deprived of oxygen such as in live rock and other filter materials, this nitrate is converted back to ni...
When there are insufficient areas of a tank which are deprived of oxygen (anaerobic zones) or denitrification is not taking place properly, nitrate will build up. This can also happen in an aquarium where ...
Salifert Oxygen Profi-Test
Corals and marine fish require very high levels of oxygen concentration because of the low solubility of oxygen in salt water so it is very important to regularly test the level of oxygen present. ...
Ammonia and ammonium should be rapidly converted by aerobic nitrification into nitrite and then nitrate and finally into nitrogen gas. If this does not happen then either the aquarium is not fully matured or there is a problem ...
Calcium is a major constituent of coralline algae, the skeletal material of hard corals and the skeletal needles of soft/leather corals. In many cases too low a calcium concentration retards coral and coralline algae growth.
Salifert pH Profi-Test
The pH value in a marine tank has a major impact on the growth of corals and calcareous algae and on many biological processes. The pH should not be allowed to fluctuate more than approx. 0.2 units dur...
Salifert Silicate Profi-Test
Silicate occurs in tap water or purified water when the reverse osmosis or de ionizing unit is not functioning properly.
Silicate can result in diatom bloom and can block some essential trace e...
Salifert Copper Profi-Test
Copper is often used as a treatment for parasite infested fish and it is essential that the correct concentration is used as too high levels can be toxic to marine fish and invertebrates.
Salifert Phosphate Profi-Test
If phosphate is present in too high a concentration there may be an increase in growth of undesirable algae and if the phosphate level is higher than 0.04 mg/L the growth rate of corals and calc...