Quick Stats
| Adult Size | 5–10 cm |
| Minimum Tank | 20 gal |
| Temperature | 24–28°C |
| pH Range | 7.0–8.0 |
| Hardness (GH) | 8–15 dGH |
| Difficulty | Medium |
| Temperament | Peaceful |
| Diet | Detritivore/Herbivore — biofilm, algae, sinking pellets, blanched vegetables |
| Schooling | 1–2 per 10 gal |
Tank Setup
Rabbit snails (Tylomelania species, from Sulawesi in Indonesia) are tropical snails that prefer warm, slightly alkaline water. A 20 gallon tank is the minimum for one; they reach 10 cm and produce more waste than you'd expect from a snail.
Water parameters: temperature 24–28°C (warmer than most snails), pH 7.0–8.0, hardness 8–15 dGH. Calcium matters — harder water keeps the shell thick. In soft water, supplement with cuttlebone or crushed coral.
They live in the substrate, burrowing into sand and emerging to forage. A sandy substrate is essential — gravel damages their foot. Provide caves, driftwood, and plants (they don't eat live plants). They are most active during the day, which makes them more entertaining to watch than nocturnal snails.
Tank Mates
Rabbit snails are peaceful and ignored by most fish. Their size and tough shell protect them from casual predation, but they can be eaten by dedicated snail-eaters.
Compatible with: peaceful tropical community fish (Tetras, Corydoras, Gouramis, Rainbowfish), Cherry Shrimp, Amano Shrimp, Nerite Snails, and Mystery Snails. The warm water they prefer (24–28°C) overlaps with most tropical community fish.
Avoid housing with Clown Loaches, Yoyo Loaches, Dwarf Puffers, or other snail-eating fish. Also avoid keeping them with apple snails — the apple snail's plant-eating will leave the rabbit snail with nothing to graze on.
Diet & Feeding
Rabbit snails are detritivores and algae-grazers. They eat biofilm, soft algae, sinking pellets, blanched vegetables, and fish food scraps. They do not eat live plants — they're safe for planted tanks.
Feed 2–3 times per week in addition to what they graze. Drop in an algae wafer or a slice of blanched zucchini after lights-out. They are slower eaters than apple snails and won't demolish food overnight.
Calcium supplementation matters. Without enough calcium, the shell thins and the snail eventually dies. Offer cuttlebone, crushed coral in the filter, or a calcium block. The warm water they prefer tends to be slightly less saturated with calcium, so active supplementation is more important than for cool-water snails.
Common Health Issues
Rabbit snails are hardy when kept warm and fed adequately. The main health issues are shell erosion (soft water — fix with calcium) and 'trapdoor' deaths from poor water quality. They are more sensitive to ammonia and nitrite than most snails — the tank must be fully cycled.
Copper is lethal. Always remove them before treating fish with copper-containing medications. Many fish medications contain copper; always check the label.
Lifespan is typically 1–3 years. They grow slowly compared to apple snails — a 2 cm juvenile may take a year to reach 6 cm. Their slow growth and slow reproduction make them a premium choice for keepers who don't want a snail explosion.
Breeding
Rabbit snails are not hermaphroditic — you need a male and a female. They reproduce very slowly compared to pest snails, producing one egg at a time (not clusters). The single egg hatches into a fully-formed miniature adult — there is no free-swimming larval stage.
A single baby rabbit snail every few weeks is typical. This is why they can't overrun a tank — even a breeding pair produces maybe 10–20 offspring per year, not hundreds. Population control is essentially never needed.
Sexing is difficult. The easiest approach is to keep 3–4 snails and let them sort it out. If you see a tiny perfect miniature of an adult on the glass, congratulations — you have a breeding pair. The juveniles grow slowly and are immediately self-sufficient.
Frequently Asked Questions
What size tank does a Rabbit Snail need?
A minimum of 20 gallons for one snail. They reach 10 cm and produce more waste than you'd expect — 5 gallons per additional snail is a safe rule. They need a sandy substrate (gravel damages their foot) and warm water at 24–28°C.
Do Rabbit Snails eat plants?
No — Rabbit Snails eat biofilm, algae, and detritus. They are safe for planted tanks. This makes them a better choice than Apple Snails for planted displays.
How fast do Rabbit Snails reproduce?
Very slowly. They produce one egg at a time (not clusters), and each egg hatches into a fully-formed miniature adult. A breeding pair might produce 10–20 offspring per year — they cannot overrun a tank the way pest snails do.
Are Rabbit Snails active during the day?
Yes — unlike most aquarium snails which are nocturnal, Rabbit Snails are active during the day. They burrow into the substrate and emerge to forage, climb the glass, and explore. This makes them far more entertaining to watch than Nerite or Mystery Snails.