Black Devil Spike Snail (Faunus Ater)


Black devil spike snail is also called Faunus ater. Even though their dark color and spike-like shell look attractive, these little creatures are underrated in the aquarium hobby. The color of these snails ranges from many different shades of dark chocolate brown to glossy dark brown and shiny deep black.

They can grow significantly large and look gorgeous. A full-grown black devil spike snail can measure up to 8 cm which is a quite large size for a snail. For keeping Faunus ater in an aquarium, due to the size of the snail, it needs a large aquarium. Also, keeping them with enough open space in the aquarium is significant. The surroundings should not be over-crowded with heavy vegetation or decorative rocks and shells. Otherwise, they can get stuck and die.

Black devil spike snail shells feature a spiral long structure shape. The tapers with sharp ends rather look like a spike. The body color of the snail is mostly black, gray or chestnut brown.


Faunus Ater is a close relative of the famous Malaysian Trumpet snails. But in size and shape, they resemble more of Giant Sulawesi Snails. The sturdy nature of these black devil spike snails makes them quite unique. They are mostly active, unlike the Giant Sulawesi Snails. They go around the aquarium several times a day and keep the environment clean and good. If the temperature goes down and water becomes cold, their tough nature bears it without getting affected.

If there are plants and weeds in the aquarium, black devil spike snails may nibble at them. That is why it is strongly recommended that your choice of aquarium decoration should not include too many live plants if you are keeping black devil spike snails in it.

You can keep other beautiful types of snails and shrimps together with them in the same aquarium and do not worry about the presence of black devil spike snails. They are very peaceful and proper for community tanks.

Water Parameters

Temperature: 22-25°C
pH: 7,5 – 8,5
Hardness: 10-20 dGH

Their best habitat is brackish waters. They can also survive in freshwater but for breeding, they need brackish water. It lives in brackish water in Thailand and other parts of Asia.


Black Faunus snails survive on feeding with algae especially the green algae that grow in the aquarium but if algae in the tank are all consumed they can be fed with algae wafers as well. Sunken vegetables and dry foods like cuttlebone are also good food sources for them.

Black Faunus snails are humble and modest. They do not harm any other aquarium inhabitant. They just search for uneaten food, decaying plant matter and algae in the tank bottom. Their hard shell protects them from other fellows in the aquarium. But if you have Pufferfish in the aquarium, do not add black devil spike snails in the same tank. But, the pufferfish can easily tear the snail shell such as a parrot tear guava. For a wide variety of aquarium fish, they make a decent fellow


These snails are like Nerite Snails. They lay eggs that naturally hatch into a larval phase of marine style. But they do not reproduce in captivity and the freshwater home aquarium.

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