Black/Brown Mystery Snail (Medium) (Pomacea diffusa)

Bring timeless beauty and natural functionality to your freshwater aquarium with the Black/Brown Mystery Snail (Pomacea diffusa). Featuring a rich dark brown to nearly black shell with warm earthy tones, this elegant freshwater invertebrate creates a striking contrast against plants, driftwood, and colorful fish while serving as an excellent member of your aquarium's clean-up crew.

Our Medium-size Black/Brown Mystery Snails are healthy, active, and approximately 1–1.25 inches (2.5–3.2 cm) in shell diameter, about the size of a large grape. At this size, they are well established, adapt quickly to new aquariums, and have plenty of growth ahead.

Throughout the day, Black/Brown Mystery Snails actively graze on algae, biofilm, and leftover food, helping to maintain a cleaner aquarium while adding fascinating movement to your aquascape. Their peaceful temperament makes them ideal companions for community fish, shrimp, and other non-aggressive invertebrates.

To promote healthy shell growth, provide clean, stable water with adequate calcium and a varied diet that includes algae wafers, sinking pellets, blanched vegetables, and other quality invertebrate foods.

Whether you're designing a natural biotope, a planted aquarium, or a colorful community tank, the Black/Brown Mystery Snail is a hardy, attractive, and beneficial addition that hobbyists of all experience levels will appreciate.

Quick Facts

• Scientific Name: Pomacea diffusa

• Common Name: Black/Brown Mystery Snail

• Size Offered: Medium (approximately 1–1.25 inches / 2.5–3.2 cm in shell diameter)

• Origin: South America

• Adult Size: Up to 2 inches (5 cm)

• Temperament: Peaceful

• Care Level: Easy

• Diet: Omnivore

• Minimum Aquarium Size: 5 gallons

• Water Temperature: 68–82°F (20–28°C)

• pH: 7.0–8.2

• Water Hardness: Moderate to Hard (recommended for healthy shell development)

• Lifespan: 1–3 years

• Compatibility: Excellent for peaceful community aquariums

At Bioacuatica, our Black/Brown Mystery Snails are carefully selected for their healthy shells, active behavior, and beautiful natural coloration. Every snail is professionally packed with care to ensure it arrives healthy and ready to become a beautiful and beneficial addition to your aquarium.

We ship Monday to Thursday

!!! LIVE ARRIVAL GUARANTEED !!!

In the very rare event of DOA, please send us pictures of the whole unopened bag, within two hours of first delivery attempt.

WE ARE MORE THAN HAPPY TO ASSIST YOU