Best Rabbit Snail Tankmates: 10 Ranked by Water Fit

Your rabbit snail has the tank to itself, and you’d like to give it some company. The best tankmates for a rabbit snail are Sulawesi shrimp and other rabbit snails, because both want the same 79-86°F (26-30°C), pH 7.5-8.5 water. The fish that usually fill top ten lists each miss at least one of the snail’s numbers, and the Celebes rainbowfish misses by the least.

That makes for a short list, and it’s the honest one. Below are ten animals that keep turning up on rabbit snail tankmate lists, ranked by how well they fit a warm, alkaline Sulawesi tank. After them come the ones that should never go in at all.

What must a rabbit snail tankmate match?

A rabbit snail tankmate has to live in the snail’s water, leave its antennae alone and not strip the film it grazes. Water comes first, because a gentle temperament can’t rescue a fish that’s too cool or too acidic for the tank.

Those are the numbers we keep our Sulawesi shrimp to, and rabbit snails need the same water. Check a candidate against every line, not just temperature. A fish that copes with pH 8 but wants cooler water will still spend its life at the edge of what it can take.

Temperament is the second test. A rabbit snail pulls into its shell when something bothers it, and a snail that’s shut isn’t grazing. Food is the third test. This snail eats the film on rock and glass, so any tankmate that grazes the same surfaces is a competitor, however polite it is. The snail itself never starts the trouble: rabbit snails aren’t aggressive toward shrimp, fish or each other.

If your tank doesn’t hold that table yet, build it before you shop for company, starting with the water and maturity checks in Sulawesi rabbit snail care.

The 10 most suggested rabbit snail tankmates, ranked by fit

Only the first two on this list share a rabbit snail’s full range. Everything from third place down misses at least one number, so we ranked them by how close they come. Each fish’s published range is set against the one we keep the snail to.

Every fish range below comes from that fish’s FishBase species summary. Where an entry leaves a number out, we count it as unknown, not as a match. In this tank, pH and hardness rule fish out just as surely as temperature does. And a fish that overlaps only at one edge of the snail’s range has no margin left when the heater runs warm or the KH drifts.

1. Sulawesi shrimp want the snail’s exact water

   Sulawesi shrimp are the one tankmate built for the same tank. The table above is the range we keep Sulawesi shrimp to as well, so nothing has to give. The limit is food, not chemistry. Both graze the same film, and a big snail eats into the layer a shrimp colony lives on. Add the snail only once the rock carries a film you can see, then keep an eye on that film after it goes in. Grazing space is the only real limit when you keep rabbit snails with Sulawesi shrimp.

2. Other rabbit snails fit if the rock can feed them all

   Other rabbit snails need exactly the same water, whatever trade name is on the bag. Grazing is what limits you. Each snail you add is another large grazer on the same rock, so add one, watch nitrate and the film for a few weeks, and let those readings decide the next.

   Rabbit snails don’t fight over space, so a group’s real cost is food, and a group can grow. These snails give birth to live young that already carry a shell, and each one is another grazer on the same rock. A tank stocked with adults to the limit of its film has nothing spare if young start to appear, so stop short of that limit.

3. Celebes rainbowfish come closest, but miss on hardness

   The Celebes rainbowfish (Marosatherina ladigesi) is the best fish here, and it still isn’t a clean match. It’s native to south Sulawesi, and FishBase lists it as a peaceful community fish for water up to 82°F (28°C) and pH 8.0.¹ The same entry puts its hardness range above our 8 dGH ceiling.¹ So the two overlap only at the cool, low-pH end of the snail’s range, and even there the water is softer than the fish is listed for. Close isn’t the same as a match, and we wouldn’t build a tank around it.

4. Mollies overlap on pH and compete for the same film

   Mollies (Poecilia sphenops) come closer on pH than most fish and further on everything else. FishBase lists them for alkaline water from pH 7.5, which suits, but only up to 82°F (28°C) and at a hardness well above 8 dGH.² In aquariums they also eat green algae.² That’s a group of busy grazers working the film your snail needs, so we’d leave them out. Guppies, their close relatives, miss on hardness too, which is why we wouldn’t keep rabbit snails with guppies either.

5. Ember tetras overlap only at the cool end

   Ember tetras (Hyphessobrycon amandae) are small and peaceful, but the fit is thin. FishBase gives them a temperature range that stops at 82°F (28°C) and lists no pH or hardness at all.³ You’d be guessing on the two numbers that matter most in this tank. And if Sulawesi shrimp share it, small tetras often eat shrimplets too, so skip them.

6. Pygmy corydoras stop where the snail’s range starts

   Pygmy corydoras (Corydoras pygmaeus, now listed by FishBase as Gastrodermus pygmaeus) get suggested because they’re tiny and gentle, but temperature rules them out. FishBase lists them up to 79°F (26°C), the very bottom of a rabbit snail tank.⁴ That leaves no margin on a warm day, or for a heater that runs a little high. They’re bottom dwellers too, so they’d be sharing the snail’s sand.

7. Otocinclus want water cooler than a rabbit snail tank

   Otocinclus top plenty of shrimp tank lists, and in a cooler tank they earn the spot. FishBase lists Otocinclus vittatus, one of the species sold under that name, for water that ends below 79°F (26°C), which is right where this tank begins.⁵ They’re grazers as well, so they’d compete for the snail’s film even if the water suited them.

   The better home for them is a cooler tank of their own.

8. Cardinal tetras need soft, acid water

   Cardinal tetras (Paracheirodon axelrodi) come from the Rio Negro and upper Orinoco basins, and FishBase lists them for acid water that never reaches pH 7.5.⁶ Pulling a Sulawesi tank down to suit them would drop the snail below its own range. This pairing fails before behavior even comes into it. Most other tetras miss the same way, which is why rabbit snails with tetras rarely work.

9. Sulawesi ricefish come from soft water, despite the name

   A Sulawesi name doesn’t mean Sulawesi lake water. Oryzias woworae, a ricefish from Muna Island off southeast Sulawesi, is listed by FishBase for water below pH 7.5.⁷ It’s also known from a single collection site and assessed as Endangered.⁷ It doesn’t belong in a rabbit snail tank, whatever the label at the store says.

   FishBase gives it a pH range that tops out at 7.0.⁷ That leaves at least half a pH unit between the fish and the bottom of the snail’s range, so one of them would always live outside its own numbers. When a shop sells a fish under a Sulawesi name, check its listed pH and hardness the way you’d check every other fish here. Trust those numbers over the label.

10. Cherry shrimp work only as a small group in the snail’s water

    Cherry shrimp and other Neocaridina are the surprise on this list. Their usual range is 65-78°F (18-26°C), but in a lab study they grew, matured and bred at 82°F (28°C), so a rabbit snail tank’s floor of 79°F (26°C) is a published fit.⁸ The chemistry overlaps too, and at Shrimp Aquatics a small group of Neocaridina lives and breeds in some of our Sulawesi tanks at the snail’s temperature. One keeper has kept rabbit snails with cherry shrimp in a 12.5 gallon planted tank for about two years. Keep the heater in the snail’s range and the group small, the two rules we follow for rabbit snails with Neocaridina shrimp.

If Sulawesi shrimp and more rabbit snails are where you land, the snails are the easy part to source. Every rabbit snail we sell is bred by Shrimp Aquatics, not collected from the wild. Pick the Sulawesi snail line you like the look of, since they all need the water above. We don’t promise breeding, sex or the number of young from any order.

Which animals should never share a rabbit snail tank?

Never add assassin snails, crayfish, large cichlids or any fish sold to control snails. Each of them hunts or crushes snails, and a slow snail has nowhere to go in a glass box.

Assassin snails (Anentome helena, often sold as Clea helena) hunt other freshwater snails and eat them through the shell opening.⁹ A big adult rabbit snail may be more than one can manage, but young rabbit snails are small, and we wouldn’t gamble with them. Even with adults, we’d rather not find out whether assassin snails will attack a much larger rabbit snail.

Big cichlids are the clearest warning, because it’s already happened in the wild. The introduced flowerhorn cichlid reached Lake Matano, one of the rabbit snail’s home lakes, around 2005, and researchers link it to a decline in the lake’s endemic animals.¹⁰ A tank gives a snail far fewer places to escape than a lake does. That’s why we wouldn’t keep rabbit snails with cichlids of any size.

Crayfish are a no as well. In trials, redclaw crayfish killed both the smallest and the largest snails tested.¹¹ We’d give large freshwater crabs the same answer.

For fish, the usual rule is simple. If it’s sold to control snails, it doesn’t go in a snail tank. That covers pea puffers and the loaches keepers buy for exactly that job. Bettas are a milder version of the same problem, and whether rabbit snails can live with bettas comes down to water and nipped tentacles.

How to add a tankmate without starving your rabbit snail

Add one kind of tankmate at a time, and only once the rock and glass already carry a film you can see. The snail’s food grows on those surfaces, every grazer you add draws on the same supply, and prepared food can’t make up for a tank that hasn’t grown one.

1. Test against the table above for a few weeks in a row, with ammonia and nitrite at zero the whole time.
2. Add the first group of tankmates, then leave the tank alone for a few weeks apart from your normal water changes.
3. Watch the film on the rock. If it’s being grazed bare faster than it grows back, stop adding animals.
4. Watch nitrate. If it climbs toward 10 ppm on your usual maintenance, the tank is carrying all it can.
5. Watch the snail. If it stays shut whenever a new tankmate is near, move the tankmate, not the snail.

A safe default for feeding a mixed tank is a little prepared food on open sand after the lights go out, when most tankmates have settled. Lift whatever’s left within a few hours. That stops the snail being outcompeted and leaves the rock’s film for the shrimp.

Can’t decide whether your tank can take one more? Wait a month. A grazing layer that’s been worked flat takes weeks to come back, and everything in the tank shares that wait.

What the research says about rabbit snail tankmates

None of these studies put a tankmate in with rabbit snails. Read each one as evidence about that tankmate on its own. The warm-water case for cherry shrimp comes from a 90-day study of the red cherry shrimp, in which the shrimp grew, matured and bred at 82°F (28°C).⁸ That’s why the bottom of a rabbit snail tank’s range counts as a published fit for them.

For assassin snails, a lab study found they took only prey under about twice their own weight.⁹ That’s where the line between a big adult rabbit snail and a small young one comes from. The crayfish evidence comes from mesocosm trials with two invasive snails, not rabbit snails. Redclaw crayfish killed both the smallest and the largest snails tested, and the authors found no size at which a snail was reliably safe.¹¹

References

11 Sources

1. Marosatherina ladigesi, Celebes rainbowfish, FishBase species summary, read September 25, 2026.
2. Poecilia sphenops, Molly, FishBase species summary, read September 25, 2026.
3. Hyphessobrycon amandae, Ember tetra, FishBase species summary, read September 25, 2026.
4. Gastrodermus pygmaeus, Pygmy corydoras, FishBase species summary, read September 25, 2026.
5. Otocinclus vittatus, FishBase species summary, read September 25, 2026.
6. Paracheirodon axelrodi, Cardinal tetra, FishBase species summary, read September 25, 2026.
7. Oryzias woworae, FishBase species summary, read September 25, 2026.
8. Tropea, Stumpf and Lopez Greco, Effect of Temperature on Biochemical Composition, Growth and Reproduction of the Ornamental Red Cherry Shrimp Neocaridina heteropoda heteropoda (Decapoda, Caridea), PLOS ONE 10(3): e0119468, 2015.
9. Assassin snails (Anentome helena) as a biological model for exploring the effects of individual specialisation within generalist predators, Berkhout and Morozov, PLOS ONE 17(3), 2022.
10. The complete mitogenome of Tylomelania sp. ‘Poso A’ (Caenogastropoda: Pachychilidae) from Lake Poso assembled from long-read sequencing data, Stelbrink and others, Molecular Biology Reports 53, 2026.
11. Multiple invasions and predation: The impact of the crayfish Cherax quadricarinatus on invasive and native snails, Baudry and others, Ecology and Evolution 14(4), 2024.