Triangle poso Rabbit snail (Tylomelania sp. )

Triangle Poso Rabbit Snail (Tylomelania sp.) — A Geometric Gem from the Ancient Lakes of Sulawesi

The Triangle Poso Rabbit Snail (Tylomelania sp.) is a distinctive and eye-catching variant of the Rabbit Snail family, named for the striking triangular or angular patterning on its shell. Endemic to the ancient Lake Poso in Sulawesi, Indonesia, this large, slow-moving snail combines a boldly patterned shell with the warm, characterful body and expressive face that make all Rabbit Snails so beloved in the planted aquarium hobby.

Bold Pattern, Gentle Soul

The Triangle Poso Rabbit Snail’s distinctively patterned shell — marked with angular, geometric designs in contrasting tones — makes it one of the most visually interesting Rabbit Snail varieties available. Its slow, deliberate movement and rabbit-like face give it an endearing, almost comical charm that is entirely its own. Like all Rabbit Snails, it is a livebearer that reproduces very slowly, producing only one or two offspring at a time, making population control completely effortless.

Care Profile

• Scientific Name: Tylomelania sp. (Triangle Poso)
• Origin: Lake Poso, Sulawesi, Indonesia — ancient, mineral-rich freshwater lake
• Size: Up to 8–10 cm
• Temperament: Completely peaceful; safe with fish, shrimp, and plants
• Diet: Omnivore — grazes on algae, biofilm, soft plant matter, and organic detritus; supplement with blanched vegetables, algae wafers, and sinking pellets
• Water Temperature: 26–30°C (requires warmer water than most freshwater snails — a heater is essential)
• pH: 7.5–8.5 (prefers hard, alkaline water reflecting its Lake Poso origins)
• Tank Size: Suitable from 40L upward; benefits from open substrate for foraging
• Breeding: Livebearing; produces one offspring at a time — population growth is very slow and manageable
• Note: Requires warm, hard, alkaline water — not suitable for soft or acidic setups. Avoid housing with assassin snails or any species that may prey on them.

Aquascape Compatibility

The Triangle Poso Rabbit Snail is plant-safe and an excellent companion for peaceful fish and dwarf shrimp. It thrives in warm, well-filtered aquariums with open sandy or fine-gravel substrate for foraging, driftwood, and leaf litter. It pairs beautifully with other Sulawesi species — Cardinal Sulawesi shrimp and other Tylomelania varieties — in a dedicated Sulawesi biotope setup.

Geometric, gentle, and endlessly charming — the Triangle Poso Rabbit Snail is the patterned jewel that brings character and calm to your planted aquarium.