The species, easiest first
- 1
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
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
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
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
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
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.
- 7
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 → - 8
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 → - 9
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 → - 10
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 → - 11
Bamboo Shrimp
Atyopsis moluccensis- Medium
- Shrimp
- Max 3"
- Filter feeder
Bamboo shrimp eat with four feather-like fans, parking in the filter current and combing food particles out of the water — which means they need two things most tanks lack: strong flow and water with something in it.
$11.99 Out of stockCare profile → - 12
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
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
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
Asian Gold Clam
Corbicula fluminea- Advanced
- Clam
- Max 2"
- Filter feeder
Here is the truth most listings skip: freshwater clams slowly starve in the clean, well-filtered tanks most people keep, because they live entirely on suspended micro-particles that good filtration removes.
$13.99 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.
Frequently asked questions
Will my betta attack a snail?
Most bettas investigate a new snail with a nip or two, get nothing for the effort, and lose interest permanently. Watch for the exception: a persistently aggressive betta can bite at extended eye stalks and stress the snail. Snails with trapdoors or low-profile shells, like nerites and trapdoor snails, handle the introduction best.
Why are shrimp not on this list?
Because the outcome depends on the individual betta. Many bettas hunt cherry shrimp like live food, while others ignore even shrimplets — and you cannot know which you have until shrimp are in the tank. Larger Amano shrimp survive more often, but they rate 'caution', not 'safe'. Snails remove the gamble.
How many snails can live with a betta in a 5 gallon tank?
One or two small snails — a nerite or horned nerite is ideal — is the practical ceiling. Snails add real bioload, and a 5-gallon is already a small system; a single hard-grazing nerite keeps the glass clean without tipping the balance. Skip the larger mystery and rabbit snails until 10 gallons.