Can cherry shrimp live with black ghost knives?

Verdict
No

No. Cherry shrimp and black ghost knives should not share a tank. Black ghost knives hunt shrimp. Adult cherry shrimp will be eaten.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–80°Cherry shrimp 65–80°Black ghost knife 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–8Cherry shrimp 6.5–8Black ghost knife 6–8
The green band is the pH both tolerate.

Size to scale

Cherry shrimp · 1.5 inBlack ghost knife · 15 in0"2"4"6"8"10"12"14"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

Cherry shrimpBlack ghost knife
Temperature65–80 °F73–82 °F
pH6.5–86–8
Adult size1.5 in15.0 in
Minimum tank5 gal125 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupGroups of 6+One per tank
DietOmnivoreCarnivore

Better tank mates for cherry shrimp

All cherry shrimp tank mates

Better tank mates for black ghost knives

All black ghost knife tank mates

Questions

Can cherry shrimp live with black ghost knives?

No. Cherry shrimp and black ghost knives should not share a tank. Black ghost knives hunt shrimp. Adult cherry shrimp will be eaten.

What temperature suits both cherry shrimp and black ghost knives?

73–80 °F. Cherry shrimp need 65–80 °F, black ghost knives need 73–82 °F.

What size tank do cherry shrimp and black ghost knives need together?

At least 125 gal, set by the black ghost knife. Add space for each extra fish.