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 have a major effect on stabilizing or buffering pH levels in the aq

Iodine test kits should be capable of measuring all forms of naturally occurring iodine. The Salifert Test Kit is the only one offering this feature, measuring all naturally occurring iodine compounds and giving a reading of total iodine concentration.

In a marine aquarium strontium plays an important role in accelerating the growth of coral and calcareous algae.

With this test you can easily determine whether the aquarium contains enough CO2. Carbon is the most important nutrient for aquarium plants. Approximately 40% of the plants dry mass consists of this vital element.

Because of its unique formulation, the Salifert Test Kit does not suffer from amine interference, and offers full color development within one minute.

Salifert Refract Check Solution (10mL)

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.

The pH value in a marine tank has a major impact on the growth of corals and calcareous algae and on many biological processes.

Having a reliable and easy to use potassium test kit is hard to come by. If you are dosing potassium the ability to monitor and measure how much you are adding is invaluable.

If phosphate is present in too high a concentration there may be an increase in growth of undesirable algae and if the phosphate level are too high, the growth rate of corals and calcareous algae may decrease by as much as 90%.

Magnesium is present in natural sea water in a fairly high concentration and is an essential element of chlorophyll which is necessary for photosynthesis. Without photosynthesis plants, algae and coral would not be able to survive.

The build up of nitrate can result in unwanted algae growth and the slowing down of coral growth.