Surgical grade stainless steel tongs. For a wide variety of uses in the aquarium. Four types of tongs for different needs. The aquavitro premium surgical stainless steel tongs are designed for both freshwater and marine aquariums. They are ideal for planting and maintaining aquatic plants. In marine and reef aquariums, these tongs work well for placing or recovering cuttings or coral colonies. These forceps can be used in aquascaping in any aquarium. The straight forceps are ideal when planting in gravel substrate (as opposed to sand) or for placing or retrieving coral cuttings or colonies from reef aquariums.