A sandy substrate gives your reef aquarium a natural look. It also fulfils an important buffer function by stabilising the alkalinity and the pH value. Some reef inhabitants such as some gobies, burrowing snails and wrasses even depend on a sandy bottom in the reef tank.
When it comes to sand, you can choose between different grain sizes, colours and other properties. The term "live sand" refers to substrate that is already colonised by bacteria and promotes the development of a natural tank biology as well as significantly reducing the start-up phase in your reef aquarium.
Buying sand for your reef tank - our tip:
A sand depth of about 2 cm in the aquarium is perfectly sufficient for a normal substrate cover. For an area of 1 x 1 m you need about 20-25 kg of substrate. Make sure that the reef structure stands directly on the base plate and not on sandy areas, otherwise there is a risk of it collapsing later.