Can black ghost knives live with assassin snails?
Verdict
Yes, with care
Yes, with care. Black ghost knives and assassin snails can share a tank, but watch one thing. Large black ghost knives crack or pick at small snails. A big mystery snail has better odds than a ramshorn.
What to watch
- Watch outLarge black ghost knives crack or pick at small snails. A big mystery snail has better odds than a ramshorn.
- Watch outBlack ghost knives grow to 15 inches and need 125 gallons, far more than a tank set up for assassin snails.
What works
- Both are fine at 75–80°F.
- pH 7–8 suits both.
Water side by side
Size to scale
Care at a glance
| Black ghost knife | Assassin snail | |
|---|---|---|
| Temperature | 73–82 °F | 75–80 °F |
| pH | 6–8 | 7–8 |
| Adult size | 15.0 in | 1.0 in |
| Minimum tank | 125 gal | 5 gal |
| Temperament | Semi-aggressive | Peaceful |
| Swims at | Bottom | Bottom |
| Group | One per tank | Alone or in pairs |
| Diet | Carnivore | Carnivore |
Better tank mates for black ghost knives
All black ghost knife tank mates
Better tank mates for assassin snails
Questions
Can black ghost knives live with assassin snails?
Yes, with care. Black ghost knives and assassin snails can share a tank, but watch one thing. Large black ghost knives crack or pick at small snails. A big mystery snail has better odds than a ramshorn.
What temperature suits both black ghost knives and assassin snails?
75–80 °F. Black ghost knives need 73–82 °F, assassin snails need 75–80 °F.
What size tank do black ghost knives and assassin snails need together?
At least 125 gal, set by the black ghost knife. Add space for each extra fish.