Black Ghost Knifefish Tank Mates & Compatibility

Black Ghost Knifefish

Apteronotus albifrons

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TemperamentSemi-Aggressive (6/10)

Adult Size40 cm

Temperature23–28°C

Water TypeFreshwater Only

Swim ZoneBottom, Mid-level

StockingSolo only

Stocking calculator

Compatible on paper, but will Black Ghost Knifefish fit your setup?

Tank mates can still go wrong if the tank is too small, already full, or the water is a poor match. Add Black Ghost Knifefish to the stocking calculator to check space, stocking pressure, and water needs before you add it.

Black Ghost Knifefish

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Showing 1 - 24 of 183 Tank Mates

Black Ghost Knifefish & African Butterfly Cichlid

Apteronotus albifrons · Anomalochromis thomasi

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAfrican Butterfly Cichlid: Mostly Peaceful

Black Ghost Knifefish & African Butterfly Fish

Apteronotus albifrons · Pantodon buchholzi

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAfrican Butterfly Fish: Semi-Aggressive

Black Ghost Knifefish & African Jewel Cichlid

Apteronotus albifrons · Hemichromis bimaculatus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAfrican Jewel Cichlid: Aggressive

Black Ghost Knifefish & African Lungfish

Apteronotus albifrons · Protopterus annectens

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAfrican Lungfish: Highly Aggressive

Black Ghost Knifefish & Agassiz's Dwarf Cichlid

Apteronotus albifrons · Apistogramma agassizii

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAgassiz's Dwarf Cichlid: Semi-Aggressive

Black Ghost Knifefish & Amano Shrimp

Apteronotus albifrons · Caridina multidentata

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveAmano Shrimp: Peaceful

Black Ghost Knifefish & Amazon Leaf Fish

Apteronotus albifrons · Monocirrhus polyacanthus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAmazon Leaf Fish: Peaceful

Black Ghost Knifefish & Amazon Puffer

Apteronotus albifrons · Colomesus asellus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAmazon Puffer: Mostly Peaceful

Black Ghost Knifefish & Apple Snail

Apteronotus albifrons · Pomacea maculata

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveApple Snail: Peaceful

Black Ghost Knifefish & Assassin Snail

Apteronotus albifrons · Clea helena

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveAssassin Snail: Peaceful

Black Ghost Knifefish & Auratus Cichlid (Mbuna)

Apteronotus albifrons · Melanochromis auratus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveAuratus Cichlid (Mbuna): Highly Aggressive

Black Ghost Knifefish & Bala Shark

Apteronotus albifrons · Balantiocheilos melanopterus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBala Shark: Mostly Peaceful

Black Ghost Knifefish & Bamboo Shrimp

Apteronotus albifrons · Atyopsis moluccensis

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBamboo Shrimp: Peaceful

Black Ghost Knifefish & Banded Archerfish (Brackish)

Apteronotus albifrons · Toxotes jaculatrix

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveBanded Archerfish (Brackish): Semi-Aggressive

Black Ghost Knifefish & Beckford's Pencilfish

Apteronotus albifrons · Nannostomus beckfordi

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveBeckford's Pencilfish: Peaceful

Black Ghost Knifefish & Bee Shrimp (Crystal Red / Black)

Apteronotus albifrons · Caridina cantonensis

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveBee Shrimp (Crystal Red / Black): Peaceful

Black Ghost Knifefish & Betta (Siamese Fighting Fish)

Apteronotus albifrons · Betta splendens

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBetta (Siamese Fighting Fish): Semi-Aggressive

Black Ghost Knifefish & Black Neon Tetra

Apteronotus albifrons · Hyphessobrycon herbertaxelrodi

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveBlack Neon Tetra: Peaceful

Black Ghost Knifefish & Black Pacu

Apteronotus albifrons · Colossoma macropomum

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBlack Pacu: Mostly Peaceful

Black Ghost Knifefish & Black Skirt Tetra

Apteronotus albifrons · Gymnocorymbus ternetzi

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBlack Skirt Tetra: Mostly Peaceful

Black Ghost Knifefish & Bladder Snail (Pest Snail)

Apteronotus albifrons · Physella acuta

🔴Not Recommended

Black Ghost Knifefish: Semi-AggressiveBladder Snail (Pest Snail): Peaceful

Black Ghost Knifefish & Bleeding Heart Tetra

Apteronotus albifrons · Hyphessobrycon erythrostigma

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBleeding Heart Tetra: Peaceful

Black Ghost Knifefish & Blind Cave Tetra

Apteronotus albifrons · Astyanax mexicanus

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBlind Cave Tetra: Mostly Peaceful

Black Ghost Knifefish & Blood Parrot Cichlid

Apteronotus albifrons · Hybrid cichlid (Blood Parrot)

🟡Possible with Caution

Black Ghost Knifefish: Semi-AggressiveBlood Parrot Cichlid: Semi-Aggressive