Aquatic Arts 6 Nerite Snails COMBO PACK (Neritina natalensis) - 3 Tiger Nerite Snails, 3 Zebra Nerite Snails - Live Snails These are Nerite Snails, so they absolutely never reproduce in freshwater - great for aquarium hobbyists who don't want snails reproducing in their tanks! Nerite Snails are widely known as one of, if not the most, voracious algae-eaters out of any snail. Totally safe for live plants, live shrimp, and live fish. Each type of Nerite Snail's shells are diverse and totally unique! (Due to shell pattern variations, your snails may not look identical to the image provided.) All Aquatic ArtsTM (formerly InvertObsessionTM) brand plants and animals come with a 100% live arrival guarantee, plus free email support directly from the owners!