Mystery snail care guide

Plan a tank with mystery snailsSee all tank mates

Mystery snail quick facts

• Known jumper: keep a tight-fitting lid.

Tank setup

Give one snail at least 10 gallons (38 L), and add about 2 gallons for each extra snail in a lightly stocked tank. They breathe air at the surface through a snorkel-like tube, so they need easy access to the top. Keep a tight lid on, since they can crawl out and dry up. A waterline close to the lid also leaves females less room to lay eggs.

How many mystery snails in a tank?

The smallest common tank that suits mystery snails is a 10 gallon. Here is roughly how many fit in each size when they are the only fish, based on adult size and waste output. Leave room if you want tank mates.

Water parameters

Keep them at 21–26 °C (70–79 °F), pH 7.2–8.0 and at least 8 dGH. Soft or acidic water thins and pits the shell, so add crushed coral or a mineral supplement if your water is soft. Cooler water within this range slows them down and often means a longer life. Avoid copper medicines and salt treatments.

Best tank mates for mystery snails

These popular species share mystery snails' water needs and temperament. See the full list of 106 good matches.

• Betta fish

  6.5 cm (2.6 in) · 24–28°C (75–82°F)

• Cherry shrimp

  3 cm (1.2 in) · 20–27°C (68–81°F)

• Nerite snail

  2.5 cm (1 in) · 22–27°C (72–81°F)

• Guppy

  5 cm (2 in) · 22–27°C (72–81°F)

• Dwarf gourami

  7.5 cm (3 in) · 24–28°C (75–82°F)

• Neon tetra

  3.5 cm (1.4 in) · 21–25°C (70–77°F)

• Panda corydoras

  4.5 cm (1.8 in) · 21–25°C (70–77°F)

• Bristlenose pleco

  12 cm (4.7 in) · 22–26°C (72–79°F)

Avoid keeping mystery snails with

• Oscar: Oscar eats snails, including mystery snails.
• Assassin snail: Assassin snail eats snails, including mystery snails.
• Clown loach: Clown loach eats snails, including mystery snails.
• Discus: They need different temperatures: Mystery snail 21–26°C (70–79°F), discus 28–30°C (82–86°F).
• Dojo loach: Dojo loach eats snails, including mystery snails.
• Electric yellow cichlid: Electric yellow cichlid eats snails, including mystery snails.

Feeding

They eat leftover fish food, biofilm, soft algae and dead plant leaves. Give them a sinking food a few times a week, such as algae wafers, shrimp pellets or blanched spinach or zucchini, and include calcium-rich foods for shell growth. Remove uneaten vegetables within about 12 hours.

Behavior

Peaceful and active, often gliding over the glass or floating up to the surface. They don't attack fish, shrimp or other snails. They mostly leave healthy plants alone but may eat duckweed and soft or melting leaves, especially if underfed. Avoid puffers, snail-eating loaches, large cichlids and fish that nip their feelers, such as some bettas.

Breeding

Each snail is male or female, so you need both to get babies. Females climb out of the water, often at night, and lay a pink, raspberry-like clutch above the waterline, usually under the lid. The eggs hatch in one to four weeks depending on warmth. To prevent babies, remove clutches as soon as you see them.

Tips from experienced keepers

• Buy snails under 1 inch (2.5 cm). Young snails live longer with you and aren't laying eggs yet.
• A snail sitting still with its trapdoor shut is often just resting. Check for a foul smell before deciding it's dead.
• Never release mystery snails or tank water into ponds or streams. Apple snails are invasive in many warm regions.
• Add crushed coral or cuttlebone if your water is soft and shells look thin or pitted.
• Remove egg clutches from the lid if you don't want dozens of baby snails.

Sources

We checked these references when writing this page. Values are for healthy long-term keeping, not survival limits. Last reviewed 2026-10-13. See our editorial policy.

• aquariumcoop.com
• theshrimpfarm.com
• applesnail.net
• aquariumcoop.com