Premium Coral Sand 20kg

Aqua Ocean Premium Coral Sand is taken from the pollution-free island in south sea of China., no phosphate, nitrate and surface contaminants, clean and no-pollution. The main content of coral sand is calcium carbonate which can be conducive to the stability in seawater pH value.
It has a large surface area which makes it perfect where a buffering and biological substrate is required. Therefore it's ideal for any marine aquarium and for freshwater aquaria.