Japanese Trap Door Snail

Japanese Trapdoor Snail – Hardy and Helpful Freshwater Cleaner

Overview
The Japanese Trapdoor Snail (Cipangopaludina japonica) is a peaceful, beneficial freshwater snail known for its algae-eating abilities and unique protective shell. With a smooth, spiral-shaped shell in shades of olive, brown, or green, this snail gets its name from the “trapdoor” (operculum) that seals its body inside when threatened—offering natural defense and long-term survival.

Japanese Trapdoor Snails are ideal for outdoor ponds and aquariums alike, helping maintain cleanliness by consuming algae, leftover fish food, and decaying plant matter. Unlike many other snail species, they do not reproduce rapidly, making them a great low-maintenance choice for hobbyists who want the benefits of snails without the risk of overpopulation.

Care Requirements

• Tank or Pond Size: 10 gallons or larger (great for aquariums or koi/goldfish ponds)

• Water Temperature: 65–80°F (18–27°C)

• pH Range: 7.0–8.0

• Water Hardness: Moderate to hard (6–15 dGH)

• Temperament: Peaceful and non-invasive

• Tank Setup: Substrate for burrowing, live or artificial plants, stable water conditions. Avoid copper-based medications, as they are toxic to snails.

Diet
Japanese Trapdoor Snails are scavengers and algae grazers:

• Primary Diet: Soft algae on tank or pond surfaces

• Supplements: Blanched vegetables (zucchini, spinach), sinking algae wafers, and calcium-rich foods to support healthy shell growth

• Feeding Frequency: Mostly self-sufficient, but can be supplemented a few times per week if algae levels are low

Ideal Tank Mates
These snails are compatible with a wide range of peaceful freshwater species, including:

• Tetras

• Guppies

• Platies

• Corydoras

• Shrimp

• Bettas (in non-aggressive individuals)

• Goldfish (in larger tanks or ponds)

• Koi and other pond fish

Avoid housing with aggressive snail-eating species such as loaches, puffers, or certain cichlids.

Lifespan
Japanese Trapdoor Snails can live 3–5 years with proper care, making them a durable, long-term addition to your tank or pond.

Why Choose Japanese Trapdoor Snails?

• Excellent natural algae control

• Do not overpopulate like many other snail species

• Safe and beneficial for ponds and aquariums

• Hardy and easy to care for

• Unique trapdoor feature for protection

Summary
The Japanese Trapdoor Snail is a hardy, low-maintenance, and helpful addition to any freshwater aquarium or pond. With its beautiful shell, peaceful nature, and excellent cleaning ability, it's an ideal choice for aquarists seeking natural algae control without the worry of rapid reproduction. A perfect companion for goldfish, koi, or peaceful tropical tanks.