AQUAVITRO Soil Spade - Soil Spade 30cmSurgical grade stainless steel spade. For placing and smoothing substrate. The aquavitro surgical stainless steel spade is designed for use in freshwater and marine aquariums. It is ideal for smoothing and turning substrate. It can be particularly useful when working with light or very loose substrates. The spade can also be used to remove algae from the walls of glass aquariums.