TankmateChecker

Can ghost shrimp live with black ghost knives?

Verdict

No

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

Ghost shrimp

Ghost shrimp65–82°F · pH 7–8

Black ghost knife

Black ghost knife73–82°F · pH 6–8

What to watch

Deal breakerBlack ghost knives hunt shrimp. Adult ghost shrimp will be eaten.
Watch outBlack ghost knives grow to 15 inches and need 125 gallons, far more than a tank set up for ghost shrimp.

What works

Both are fine at 73–82°F.
pH 7–8 suits both.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Ghost shrimp	Black ghost knife
Temperature	65–82 °F	73–82 °F
pH	7–8	6–8
Adult size	1.5 in	15.0 in
Minimum tank	5 gal	125 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Bottom	Bottom
Group	Groups of 3+	One per tank
Diet	Omnivore	Carnivore

Better tank mates for ghost shrimp

All ghost shrimp tank mates

Better tank mates for black ghost knives

All black ghost knife tank mates

Questions

Can ghost shrimp live with black ghost knives?

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

What temperature suits both ghost shrimp and black ghost knives?

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

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

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