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SnailbeginnerFreshwater

Blue Mystery Snail

Pomacea bridgesii

AnimaliaMolluscaGastropodaAmpullariidae

Variety of Mystery Snail · blue

📍 South America (captive developed)

Ask Finn

Deep blue-grey form of the popular mystery snail. Strikingly beautiful against light sand or green plants. Active grazer of algae, uneaten food and detritus. One of the most popular planted tank snails.

Size2"
Min Tank5g
peaceful
Zoneall

Care Guide

Diet

Blue Mystery Snails are primarily herbivorous grazers that consume algae, biofilm, and detritus naturally present in the tank. Supplement their diet 2-3 times weekly with blanched vegetables such as zucchini, spinach, or lettuce, and calcium-rich foods like cuttlebone or algae wafers to support shell health. They will also scavenge uneaten fish food, making them excellent cleanup crew members.

Behavior

These snails are nocturnal and most active during evening and night hours, spending days resting on plants, substrate, or tank walls. They are peaceful, solitary creatures that move slowly across surfaces while grazing; they do not interact socially with other snails or fish. Blue Mystery Snails can live 3-5 years and are known for their striking coloration, which makes them popular display animals in planted tanks.

Breeding

Breeding Blue Mystery Snails in captivity is extremely difficult and rarely successful in home aquariums. They require specific environmental triggers and male-female pairs are hard to distinguish; even when conditions are optimal, fry survival is low. Most aquarium specimens are captive-bred from wild stock, but natural reproduction in tanks is uncommon.

Common Diseases

Shell Erosion

Symptoms

Pitting, thinning, or rough texture on shell; visible damage or holes in shell surface

Treatment

Increase water pH to 7.0-8.0, add calcium supplements (cuttlebone, crushed eggshells, or calcium powder), and ensure adequate mineral content in water

Parasitic Infections

Symptoms

Lethargy, reduced feeding, visible parasites on body or shell, mucus buildup

Treatment

Perform 25-30% water changes, quarantine affected snail, treat with anti-parasitic medication if available, and maintain excellent water quality

Bacterial Infections

Symptoms

Cloudy appearance on body, foul odor from shell opening, tissue decay, inability to retract into shell

Treatment

Increase water changes to 50% weekly, maintain optimal water parameters (pH 7.0-8.0, temperature 18-28°C), and remove decaying food promptly

Starvation/Malnutrition

Symptoms

Thin body, weak movement, pale coloration, reduced shell growth

Treatment

Provide regular supplemental feeding of blanched vegetables and calcium-rich foods 2-3 times weekly; ensure adequate algae growth in tank

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Quick Facts

pH
7.0–8.0
diet
algae/detritus/blanched veg
minTankSize
5 gallons
temperature
64–82°F (18–28°C)

Temperature

64–82°F

18–28°C

Stats

Community tips0
Kept by0 hobbyists