Black Ghost Knifefish Tank Mates & Compatibility

Black Ghost Knifefish

Apteronotus albifrons

View full care guide

TemperamentSemi-Aggressive (6/10)

Adult Size40 cm

Temperature23–28°C

Water TypeFreshwater Only

Swim ZoneBottom, Mid-level

StockingSolo only

Showing 265 - 288 of 735 Tank Mates

Black Ghost Knifefish & Figure 8 Puffer (Brackish)

Apteronotus albifrons · Dichotomyctere ocellatus

Black Ghost Knifefish & Filament Barb

Apteronotus albifrons · Dawkinsia filamentosa

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFilament Barb: Mostly Peaceful

Black Ghost Knifefish & Finger Fish

Apteronotus albifrons · Monodactylus argenteus

Black Ghost Knifefish & Fire Eel

Apteronotus albifrons · Mastacembelus erythrotaenia

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFire Eel: Mostly Peaceful

Black Ghost Knifefish & Fire Tetra

Apteronotus albifrons · Hyphessobrycon flammeus

Black Ghost Knifefish & Firemouth Cichlid

Apteronotus albifrons · Thorichthys meeki

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFiremouth Cichlid: Semi-Aggressive

Black Ghost Knifefish & Five Banded Barb

Apteronotus albifrons · Desmopuntius pentazona

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFive Banded Barb: Peaceful

Black Ghost Knifefish & Flag Tetra

Apteronotus albifrons · Hyphessobrycon heterorhabdus

Black Ghost Knifefish & Flagtail Cory (Mrs Schwartz's Cory)

Apteronotus albifrons · Corydoras robineae

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlagtail Cory (Mrs Schwartz's Cory): Peaceful

Black Ghost Knifefish & Flagtail Prochilodus

Apteronotus albifrons · Semaprochilodus insignis

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlagtail Prochilodus: Semi-Aggressive

Black Ghost Knifefish & Flash Pleco (L204)

Apteronotus albifrons · Panaqolus albomaculatus

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlash Pleco (L204): Mostly Peaceful

Black Ghost Knifefish & Flavus Cichlid (Pseudotropheus Flavus)

Apteronotus albifrons · Chindongo flavus

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlavus Cichlid (Pseudotropheus Flavus): Aggressive

Black Ghost Knifefish & Florida Flagfish

Apteronotus albifrons · Jordanella floridae

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlorida Flagfish: Semi-Aggressive

Black Ghost Knifefish & Florida Gar

Apteronotus albifrons · Lepisosteus platyrhincus

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlorida Gar: Aggressive

Black Ghost Knifefish & Flower Stingray

Apteronotus albifrons · Potamotrygon schroederi

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlower Stingray: Semi-Aggressive

Black Ghost Knifefish & Flowerhorn Cichlid

Apteronotus albifrons · Hybrid cichlid (Amphilophus cross)

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlowerhorn Cichlid: Highly Aggressive

Black Ghost Knifefish & Fly River Rainbowfish

Apteronotus albifrons · Melanotaenia sexlineata

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFly River Rainbowfish: Peaceful

Black Ghost Knifefish & Flying Fox

Apteronotus albifrons · Epalzeorhynchos kalopterus

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlying Fox: Aggressive

Black Ghost Knifefish & Flyspeck Hardyhead

Apteronotus albifrons · Craterocephalus stercusmuscarum

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFlyspeck Hardyhead: Peaceful

Black Ghost Knifefish & Forktail Blue-eye

Apteronotus albifrons · Pseudomugil furcatus

Black Ghost Knifefish & Fort Maguire Peacock

Apteronotus albifrons · Aulonocara hansbaenschi

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFort Maguire Peacock: Semi-Aggressive

Black Ghost Knifefish & Fosso Cichlid (Fossorochromis rostratus)

Apteronotus albifrons · Fossorochromis rostratus

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFosso Cichlid (Fossorochromis rostratus): Semi-Aggressive

Black Ghost Knifefish & Freshwater Angelfish

Apteronotus albifrons · Pterophyllum scalare

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFreshwater Angelfish: Semi-Aggressive

Black Ghost Knifefish & Freshwater Barracuda

Apteronotus albifrons · Ctenolucius hujeta

Possible with Caution

Black Ghost Knifefish: Semi-AggressiveFreshwater Barracuda: Semi-Aggressive