Acute Bladder Snail – Species Profile

This adult Acute Bladder Snail is shown grazing on the aquarium wall.

Acute Bladder Snails (Physella acuta) are a freshwater, fully aquatic snail of the family Physidae. While they are aquatic, they do require air to breathe. They can grow to be approximately 0.5 to 0.65 inches long.

Care Level: “Falling off Logs” Easy
Preferred Water: pH of 7 to 8, moderately hard to hard water (70 to 90 ppm Calcium)
Temperature: 64 to 84°F (17.8 – 28.9 °C)
Maximum Size: 0.5″ to 0.65″ (12.7 to 16.5 mm)
Lifespan: 3 to 5 years

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Common Ramshorn Snail – Species Profile

This common ramshorn snail is shown grazing for edibles on the leaf of an Anubias barteri var. nana.

The Common Ramshorn Snail (Planorbella trivolvis) is an omnivorous, freshwater, fully aquatic species. Like all snails, it is a mollusc of the class gastropoda  (meaning “stomach foot”). It is of the family Planorbidae. They can live for up to two years and grow to about the size of a US nickel or larger.

Care Level: “Falling off Logs” Easy
Preferred Water: pH of 7 to 8, moderately hard to hard water (70 to 90 ppm Calcium)
Temperature: 64 to 84°F (17.8 – 28.9 °C)
Maximum Size: 1″ (25.4 mm)
Lifespan: 1 to 2 years

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