Colombian Ramshorn Snail
Marisa cornuarietis
Also sold as Giant ramshorn snail · Colombian giant ramshorn apple snail
Colombian Ramshorn Snail (Marisa cornuarietis) is a peaceful freshwater snail that reaches about 5 cm (2 in) and swims along the bottom. It wants 64–82°F (18–28°C) and pH 7.2–8, can be kept singly, and needs a tank of at least 40 L (11 gal).
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At a glance
| Type | Snail |
|---|---|
| Adult size | 5 cm (2 in) |
| Minimum tank | 40 L (11 gal) |
| Group size | Can be kept singly |
| Temperature | 64–82°F (18–28°C) |
| pH | 7.2–8 |
| Temperament | Peaceful |
| Eats shrimp | No |
Before it goes in
- Colombian Ramshorn Snail needs at least 40 L (11 gal). The smallest size in this library that clears that is the 15 Gallon.
- It leaves shrimp and small fish alone.
- It holds at 64–82°F (18–28°C). That shares a window with Betta and Cherry Shrimp.
- It eats most plants. Hygrophila corymbosa 'Siamensis' and Bacopa caroliniana will not last with it; tough-leaved Anubias nana 'Petite' and Marimo Moss Ball will.
Colombian Ramshorn Snail: care and setup
What tank size does it need?
At least 40 L (11 gal). The smallest size here that clears it is the 15 Gallon.
Will it eat shrimp?
No — adult shrimp and their young are both safe with it.
What water does it want?
64–82°F (18–28°C), pH 7.2–8.
Good tank mates
- Tank mates from this library that share its temperature window, are peaceful and eat neither it nor its young: Cherry Shrimp, Goldfish, Bristlenose Pleco, Celestial Pearl Danio and Molly.
- Plants that hold up with it: Anubias nana 'Petite', Marimo Moss Ball, Subwassertang and Anubias barteri.
Often compared with
| Colombian Ramshorn Snail | Ramshorn Snail | Mystery Snail | |
|---|---|---|---|
| Adult size | 5 cm | 2 cm | 5 cm |
| Min tank | 40 L | 5 L | 20 L |
| Group | 1+ | 1+ | 1+ |
| Temperature | 64–82°F (18–28°C) | 64–82°F (18–28°C) | 68–82°F (20–28°C) |
| Eats shrimp | No | No | No |