The aquavitro Soil Spade is ideal for smoothing out and turning over substrate in planted aquariums. It can be particularly useful in working with substrates that are light or very loose in consistency. The Soil Spade can also be used to remove algae from the interior walls of glass aquariums. aquavitro aquarium tools are made from premium stainless steel, enabling them to withstand a long life in an aquatic environment. They are suitable for use in freshwater and marine aquariums.