Nerite Snails – Top-Tier Algae Eaters for Freshwater & Brackish Aquariums Nerite Snails are among the most popular and effective algae-eating invertebrates in the aquarium hobby. Available in a wide variety of stunning shell patterns—from bold zebra stripes to spirals and spots—these peaceful snails bring both beauty and utility to freshwater or brackish tanks. What sets Nerites apart is their incredible algae-cleaning ability. They tirelessly consume green spot algae, film algae, and diatoms—without harming plants or overpopulating your tank. Unlike many other snail species, Nerites do not reproduce in freshwater, making them ideal for algae control without the worry of infestation. Scientific Name: Neritina spp.Common Names: Nerite Snail, Zebra Nerite, Tiger Nerite, Olive Nerite, Horned NeriteSize: 0.5 – 1.5 inchesTemperament: PeacefulMinimum Tank Size: 5 gallonsWater Parameters: Temperature: 72–78°F (22–26°C) pH: 7.0–8.2 (requires hard, alkaline water) Hardness: 6–18 dGH Freshwater or brackish (breeding requires brackish)