Black Mystery Snail (Pomacea diffusa)

The Black Mystery Snail (Pomacea diffusa) is a striking freshwater aquarium snail prized for its deep black shell, peaceful temperament, and excellent cleanup abilities. Its bold coloration creates dramatic contrast against plants, driftwood, rocks, and lighter substrates, making it a favorite for aquarists who want a unique and elegant look in their aquarium.

Black Mystery Snails are more than just beautiful aquarium inhabitants. They help consume algae, biofilm, and leftover food while adding personality and movement to planted aquariums, shrimp tanks, and peaceful community fish setups.

Quick Facts

• Scientific Name: Pomacea diffusa
• Common Name: Black Mystery Snail
• Adult Size: Up to 2 inches
• Temperament: Peaceful
• Care Level: Easy
• Diet: Omnivore
• Lifespan: 1–3 years
• Minimum Tank Size: 5 gallons
• Water Temperature: 68–82°F
• pH Range: 7.0–8.2
• Plant Safe: Yes
• Community Safe: Yes

Why Choose a Black Mystery Snail?

✔ Rich black shell coloration
✔ Excellent algae and biofilm grazer
✔ Helps consume leftover food and detritus
✔ Safe with fish, shrimp, and live plants
✔ Easy to care for and beginner friendly
✔ Adds contrast and elegance to freshwater aquariums

Aquarium Setup

Black Mystery Snails thrive in established freshwater aquariums with stable water parameters and plenty of surfaces to explore. They are ideal for planted tanks, shrimp aquariums, nano setups, and community fish tanks.

Calcium is important for maintaining strong shell growth. Providing calcium-rich foods, cuttlebone, or mineral supplements can help prevent shell erosion and support long-term health.

A secure aquarium lid is recommended, as Mystery Snails occasionally explore above the waterline.

Diet & Feeding

While Black Mystery Snails naturally graze on algae and biofilm, they should also receive supplemental foods.

Recommended foods include:

• Algae wafers
• Shrimp pellets
• Blanched zucchini
• Cucumber
• Spinach
• Calcium-rich foods
• Leftover fish food

Tank Mates

Black Mystery Snails do well with:

• Tetras
• Rasboras
• Corydoras
• Guppies
• Endlers
• Platies
• Mollies
• Shrimp
• Other peaceful community fish

Avoid aggressive snail-eating fish such as puffers, large cichlids, and many loach species.

Frequently Asked Questions

Do Black Mystery Snails eat algae?
Yes. They help consume algae, biofilm, and leftover food, making them a valuable part of an aquarium cleanup crew.

Are Black Mystery Snails safe for planted tanks?
Yes. They generally do not damage healthy aquarium plants and are commonly kept in planted aquariums.

How big do Black Mystery Snails get?
Most adults reach approximately 2 inches in shell diameter.

Do Black Mystery Snails need calcium?
Yes. Calcium is important for healthy shell development and preventing shell erosion.

Will Black Mystery Snails reproduce in freshwater?
They may lay egg clutches above the waterline, but reproduction is easily controlled because the eggs are visible and can be removed if desired.

Available at Tropical Treasures Wyo

Shop healthy Black Mystery Snails at Tropical Treasures Wyo in Cheyenne, Wyoming. These beautiful freshwater aquarium snails are perfect for planted tanks, shrimp aquariums, and peaceful community fish setups.

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