Great Ramshorn Snail
Planorbarius corneus
The great ramshorn snail is a native European snail recognizable by its flat shell coiled in a spiral, like a hunting horn. It is an excellent detritivore that cleans organic waste and algae. Hardy and undemanding, it is suitable even for ponds and unheated aquariums.
Parameters
- Water type
- Freshwater
- Min volume
- 10 L
- Temperature
- 10–26 °C
- pH
- 6.5–8
- Hardness (GH)
- 8–20 °GH
- Adult size
- 3 cm
- Lifespan
- 3 years
- Diet
- Détritivore et herbivore
- Temperament
- Paisible
- Difficulty
- Débutant
Environment
A cold to temperate water species, it tolerates a wide temperature range and appreciates moderately hard water to maintain its shell. A neutral to slightly alkaline pH prevents calcium erosion. It thrives in planted aquariums rich in plant debris.
Feeding
It feeds on dead leaves, leftover food, algae, and biofilm. It can be supplemented with blanched vegetables and sinking pellets. It generally respects healthy plants and only attacks already degraded tissue.
Tips & tankmates
Hermaphroditic, it can reproduce rapidly if food is abundant, forming translucent gelatinous egg clutches on surfaces. To limit its population, reduce overfeeding rather than using chemical products. Avoid any copper-based treatment, which is lethal to it.
Sources
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