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Freshwater aquarium snails

Freshwater aquarium snails span a far wider range than the pest-or-pet debate suggests: algae-grazing nerites that never breed in freshwater, slow livebearing trapdoors and rabbit snails, burrowing sand-keepers, and even a predatory species that hunts other snails. The two questions that actually sort them are shell chemistry — every snail needs hardness and calcium, and most want pH at 7.0 or above — and reproduction, which ranges from physically impossible in freshwater to exponential. Match those two traits to your tank and there is a snail for nearly every setup.

15 species match, 8 in stock at AquaticMotiv

The species, easiest first

  1. 1Assassin Snail

    Assassin Snail

    Anentome helena
    • Easy
    • Snail
    • Max 1"
    • Pest control

    Assassin snails are the biological fix for a pest snail outbreak: they actively hunt and eat ramshorns, bladder snails, and trumpet snails, and a small group will collapse an infestation within a couple of months.

    $10.99 In stockCare profile →
  2. 2Black Devil Snail

    Black Devil Snail

    Faunus ater
    • Easy
    • Snail
    • Max 3.5"
    • Scavenger

    The Black Devil is a glossy jet-black spike up to three and a half inches long that bulldozes through substrate eating detritus — dramatic to look at, completely peaceful, and incapable of breeding in freshwater, so you get exactly the number you bought.

    $16.99 In stockCare profile →
  3. 3Blueberry Snail

    Blueberry Snail

    Viviparus sp.
    • Easy
    • Snail
    • Max 1.2"
    • Scavenger

    Blueberry snails are small blue-grey viviparids that do quiet, useful work: grazing film algae, eating detritus, and — unusually for a snail — filter-feeding particles straight from the water column.

    $26.99 Out of stockCare profile →
  4. 4Horned Nerite Snail

    Horned Nerite Snail

    Clithon corona
    • Easy
    • Snail
    • Max 0.6"
    • Algae eater

    Horned nerites do everything a zebra nerite does in half the size, which makes them the algae eater of choice for nano tanks — small enough to graze between carpet plants and inside tight hardscape without bulldozing anything.

    $12.99 In stockCare profile →
  5. 5Japanese Trapdoor Snail

    Japanese Trapdoor Snail

    Cipangopaludina japonica
    • Easy
    • Snail
    • Max 2"
    • Algae eater

    Japanese trapdoor snails are the cold-water workhorse: hardy down to the 50s, happy in unheated tanks and outdoor ponds, and among the longest-lived aquarium snails at five-plus years with good shell care.

    $20.99 Out of stockCare profile →
  6. 6

    Malaysian Trumpet Snail

    Melanoides tuberculata
    • Easy
    • Snail
    • Max 1"
    • Scavenger

    Malaysian trumpet snails are the earthworms of the aquarium: they live buried in the substrate by day, turning and aerating it, and emerge at night to eat detritus and leftover food.

    Care profile →
  7. 7Mystery Snail

    Mystery Snail

    Pomacea bridgesii
    • Easy
    • Snail
    • Max 2"
    • Scavenger

    Mystery Snails are the easiest large showpiece snail to keep, but plan for a 10-gallon minimum: a golf-ball-sized snail produces a surprising amount of waste, and in a 5-gallon that bioload adds up fast.

    $11.99 In stockCare profile →
  8. 8Ramshorn Snail

    Ramshorn Snail

    Planorbella duryi
    • Easy
    • Snail
    • Max 1"
    • Algae eater

    Ramshorns are the classic love-them-or-hate-them snail: tireless consumers of soft algae, dead leaves, and uneaten food, with striking red and pink forms that carry their blood's hemoglobin color through a translucent shell.

    $13.99 Out of stockCare profile →
  9. 9Spixi Snail

    Spixi Snail

    Asolene spixi
    • Easy
    • Snail
    • Max 1.2"
    • Pest control

    The spixi snail's claim to fame is unique in the hobby: it eats hydra, the stinging pest that plagues shrimp-breeding tanks, and it does so while being a handsome striped apple snail that stays small.

    $18.99 Out of stockCare profile →
  10. 10White Wizard Snail

    White Wizard Snail

    Filopaludina martensi
    • Easy
    • Snail
    • Max 2.5"
    • Scavenger

    The White Wizard is a chunky Southeast Asian trapdoor snail with a porcelain-white body that stands out against dark substrate, and unlike its cold-water trapdoor cousins it is fully comfortable in tropical temperatures.

    $17.99 In stockCare profile →
  11. 11Zebra Nerite Snail

    Zebra Nerite Snail

    Neritina natalensis
    • Easy
    • Snail
    • Max 1"
    • Algae eater

    If you want one animal to erase green spot and diatom algae from glass and hardscape, a nerite is it — no other freshwater snail grazes as hard.

    $11.99 In stockCare profile →
  12. 12Chopstick Snail

    Chopstick Snail

    Stenomelania torulosa
    • Medium
    • Snail
    • Max 3"
    • Scavenger

    Chopstick snails are slender three-inch spikes that live mostly buried, keeping sand beds turned and clean the way Malaysian trumpet snails do — but without the population explosion, because their larvae need brackish water and never survive in a freshwater tank.

    $16.99 Out of stockCare profile →
  13. 13Hercules Snail

    Hercules Snail

    Brotia herculea
    • Medium
    • Snail
    • Max 4"
    • Scavenger

    The Hercules snail is one of the largest freshwater snails in the hobby — a four-inch armored tower from fast Burmese rivers — and that origin is the care sheet: it wants cooler water, strong flow, and high oxygen, not a warm still betta bowl.

    $18.99 In stockCare profile →
  14. 14Rabbit Snail

    Rabbit Snail

    Tylomelania sp.
    • Medium
    • Snail
    • Max 4"
    • Scavenger

    Rabbit snails are slow-cruising, long-faced characters from Indonesia's Sulawesi lakes, and they need that lake chemistry to thrive: warm water in the high 70s to mid 80s and alkaline pH near 8.

    $31.99 In stockCare profile →
  15. 15Horned Pagoda Snail

    Horned Pagoda Snail

    Brotia pagodula
    • Advanced
    • Snail
    • Max 2"
    • Algae eater

    The horned pagoda is arguably the most spectacular freshwater snail — a spiked stone pagoda from the Salween River — and one of the least forgiving: it needs cool, fast, highly oxygenated water and a constant supply of biofilm-covered rock to graze, and it quietly starves in clean, warm, still tanks.

    $24.99 Out of stockCare profile →

Planting the same tank?

Most of these species do their best work in a planted tank. Browse the plant database, or let the finder rank every plant against your exact setup.

Browse the plant database →Open the plant finder →

Frequently asked questions

What water do aquarium snails need to keep their shells healthy?

Hard, alkaline water: pH at or above 7.0 and GH of roughly 8 dGH or more for most species. In soft or acidic water the shell dissolves faster than the snail can build it, producing pits and white erosion that never heal. Cuttlebone, crushed coral, or calcium-rich foods cover the gap when tap water runs soft.

Which aquarium snails will not multiply in my tank?

Snails whose larvae need brackish water — nerites, black devil snails, and chopstick snails — can never establish a population in freshwater. Livebearing species like trapdoor, rabbit, and white wizard snails do reproduce, but a baby at a time, slowly enough that offspring are a bonus rather than a problem.

Are snails good or bad for a planted tank?

The species sold for aquariums are overwhelmingly good: they graze algae and biofilm, eat decaying leaves before they foul the water, and several turn the substrate the way earthworms turn soil. The plant-eating reputation belongs to wild pond snails and large apple snails, not to the cleanup-crew species in this list.

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