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SnailmediumFreshwater

White Hercules Snail

Brotia herculea

📍 Southeast Asia (Thailand, Laos)

The White Hercules Snail is a large, robust freshwater snail prized for its impressive size and striking white coloration. These are powerful detritivores that help maintain tank cleanliness by consuming algae, biofilm, and decaying matter. They are peaceful, slow-moving snails ideal for established aquariums with stable water parameters.

Size2"
Min Tank20g
peaceful
Zonebottom

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Care Guide

Diet

White Hercules Snails are detritivores that graze on algae, biofilm, and decaying organic matter throughout the tank. Supplement with blanched vegetables (zucchini, spinach), sinking algae wafers, and calcium-rich foods to support shell health. Provide cuttlebone or calcium supplements in soft water to prevent shell erosion.

Behavior

These snails are nocturnal and spend most of their time grazing along the substrate and tank surfaces. They are slow-moving and relatively inactive during the day, becoming more active at night. They do not burrow but will hide in plants and decorations when stressed.

Breeding

White Hercules Snails are dioecious (separate sexes) and lay eggs above the waterline in small clusters on hard surfaces. Eggs hatch in freshwater without requiring brackish conditions, so populations can increase rapidly if conditions are favorable. Excess snails can be manually removed or controlled through feeding management.

Common Diseases

Shell Erosion / Calcium Deficiency

Symptoms

Pitted, thin, or crumbling shell; slow growth; pale coloration

Treatment

Increase water hardness (GH 8-15+), add cuttlebone or calcium supplements, ensure pH above 6.5, perform regular water changes with mineral-rich water

Copper Toxicity

Symptoms

Lethargy, shell damage, retraction into shell, death

Treatment

Immediately remove snail from copper-containing water; use copper-free medications and fertilizers; perform large water changes; avoid all copper-based treatments in snail tanks

Parasitic Infection (Flukes/Worms)

Symptoms

Excessive mucus production, shell damage, erratic movement, visible parasites on body

Treatment

Quarantine affected snail; treat with copper-free anti-parasitic medication; maintain pristine water quality; increase water changes; remove and clean decorations

Bacterial Shell Disease

Symptoms

Discolored patches on shell, pitting, foul odor, soft spots

Treatment

Improve water quality with frequent changes; increase calcium and hardness; remove decaying matter; maintain stable parameters; consider antibacterial treatment if severe

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Quick Facts

diet
Detritivore/herbivore consuming algae, biofilm, decaying plant matter, and sinking pellets
lifespan
3-5 years
max size
5 cm (2 in)
tank size
20 gallons minimum
temperament
peaceful

Water it likes

ph
6.5-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
8-15 dGH
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists