Black Ghost Knifefish

Care requirements

Care level: Intermediate – Advanced.

Because it uses the bottom area, leave enough open substrate area instead of crowding that part of the aquarium.

The listed lifespan is up to 15 years.

Aquarium size and space needs

An aquarium of 450 L or larger can be a reasonable starting point, but it should not be read as permission to overstock.

Water parameters

The temperature range for this fish is 23–28 °C, which fits many tropical freshwater aquariums. Choose other fish with overlapping temperature needs.

The pH range for this fish is 6.5–8. That points to a broad freshwater range, but stability is more important than sudden corrections.

The GH range for this fish is 5–19 dGH. That gives some flexibility, but sudden changes are usually more stressful than a stable value that is slightly imperfect.

The KH range is 0–10 dKH. Use it as a general stability reference rather than a reason for aggressive adjustments.

Temperament and compatibility

As a peaceful bottom-dwelling fish, Black Ghost Knifefish is best kept with calm species that will not harass it or dominate the feeding area.

Because this fish uses the bottom area, compatibility is easier when other fish are not all competing for the same swimming space.

Swimming zone and behavior

This fish uses the bottom area, so leave enough open substrate area for movement and feeding.

Feeding

As an omnivore, Black Ghost Knifefish should receive a varied diet rather than one repeated food type.

Because it feeds near the bottom, make sure food reaches the substrate and is not completely taken by faster fish in the open water.

Before adding this fish

• Plan for an aquarium of 450 L or larger.
• Make sure the bottom area has enough open substrate for a group.
• Choose other fish with overlapping temperature needs.
• Keep pH stable within the listed range instead of making sudden corrections.
• Avoid aggressive or highly competitive fish.
• Offer a varied diet suitable for an omnivorous bottom-dwelling fish.