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Bladder Snail
Physella acuta
Family: Physidae
📍 Worldwide (invasive)
Bladder Snails are small, sinistral (left-coiled) freshwater snails with translucent amber shells, often introduced accidentally with plant purchases. They are voracious detritivores and algae grazers that help clean up uneaten food and decaying plant matter, contributing to tank cleanliness. Population explosions occur with overfeeding; controlled feeding keeps numbers in check. They serve as an excellent food source for pea puffers and assassin snails.
Keeping this species
- diet
- Omnivore – algae, detritus, uneaten fish food, decaying plant matter
- breeding
- Prolific; self-fertilising hermaphrodite; populations controlled by limiting food
- lifespan
- 1–2 years
- max size
- 1.5 cm (0.6 in)
- tank size
- 5 gallons minimum
- temperament
- Peaceful
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Tips from the community 💡
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Water it likes
- ph
- 7.0–8.0
- ammonia
- 0 ppm
- nitrate
- <30 ppm
- hardness
- 5–20 dGH
- temperature
- 64–86°F (18–30°C)
Natural Habitat Temperature
61°F — 81°F seasonal range · (Jan low, Jul high)