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Description
[ARRIVED 28-APR-2026] Black Devil Snail 2-4cmBlack Devil Snail (Faunus ater) Large, peaceful substrate grazing snail for mature planted and community aquariums Quick Facts Size: Approx. 59 cm adult Tank Size: 40L+ recommended Difficulty: Easy Temperament: Peaceful Diet: Omnivore scavenger Plant Safe: Mostly yes Is this for you? Good if: You want a unique, larger ornamental snail You keep peaceful community fish or shrimp You have sand or soft substrate You want a snail that helps stir the
Black Devil Snail (Faunus ater)
Large, peaceful substrate-grazing snail for mature planted and community aquariums
Quick Facts
- Size: Approx. 5–9 cm adult
- Tank Size: 40L+ recommended
- Difficulty: 🟢 Easy
- Temperament: Peaceful
- Diet: Omnivore / scavenger
- Plant Safe: Mostly yes
Is this for you?
✔️ Good if:
- You want a unique, larger ornamental snail
- You keep peaceful community fish or shrimp
- You have sand or soft substrate
- You want a snail that helps stir the substrate
❌ Avoid if:
- You keep loaches, puffers, crayfish, or aggressive fish
- You expect heavy algae cleaning on glass
- You keep very delicate freshly planted carpets
- You want a snail that breeds in freshwater
Why this snail?
Black Devil Snails are large, striking snails known for their long dark shell and active burrowing behaviour.
Unlike pest snails, they do not reproduce in freshwater aquariums, making them a low-risk addition for planted and community tanks.
Picture Reference: https://aquariumbreeder.com/black-devil-snail-detailed-guide-care-diet-and-breeding/
Common mistakes
- Expecting them to clean algae from glass surfaces
- Keeping them in soft acidic water → shell erosion risk
- Using sharp gravel instead of softer substrate
- Underfeeding in ultra-clean tanks
- Housing with snail-eating fish
Care made simple
- Temperature: 22–28°C
- pH: 7.0–8.5
- Substrate: Sand or fine gravel preferred
- Diet: Leftover food, algae wafers, pellets, vegetables
- Water: Stable, moderately hard water
Black Devil Snails spend much of their time burrowing and grazing through substrate. Sand is ideal because it allows natural digging behaviour.
Pair with
- Peaceful shrimp and nano fish
- Leaf litter and botanicals
- Calcium-rich foods or mineral supplements
- Sand substrate setups
These snails are often mistaken for rabbit snails, but they behave differently. They spend more time burrowing and substrate-grazing than climbing glass, making them better suited for mature planted tanks with soft substrate.
FAQ
Do Black Devil Snails breed in freshwater?
No. They require brackish conditions to reproduce, so they generally will not multiply in freshwater aquariums
Are they safe with shrimp?
Yes. They are peaceful and commonly kept with dwarf shrimp and nano fish.
Do they eat live plants?
Usually no, though hungry snails may nibble soft or damaged plant tissue. Keeping them fed reduces this risk.
Why is the shell becoming white or rough?
Shell erosion often happens in soft or acidic water. Harder water and calcium supplementation help maintain shell quality.
Are they good algae cleaners?
They will graze biofilm and leftovers, but they are not heavy glass-cleaning snails like nerites.
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