Vetsupply: Blue Planet Snail Rid controls and kills undesirable snails in freshwater aquariums. Freshwater snails can be accidentally introduced into aquariums when new plants are added, and they can swiftly multiply, posing a threat to plant and water health. Snail Rid will destroy all types of snails, so make sure you get rid of any unwanted ones first. Suitable for both Tropical/Freshwater Aquariums