Red-tailed black shark
Jet black with a red tail, and more aggressive than the rainbow shark. One per tank, with fast mid-water tank mates.
Care at a glance
| Minimum tank | 55 gallons (208 L) |
|---|---|
| Temperature | 72–79°F (22–26°C) |
| pH | 6.5–7.5 |
| How many | Red-tailed black sharks fight their own kind. Keep one per tank. |
| Adult size | 6 in (15.2 cm) |
| Temperament | Semi-aggressive and territorial |
| Where it lives | The lower half |
| Type | Fish |
Things to know
- It claims a territory on the bottom. Give it a cave of its own.
Good tank mates
- Cardinal tetra
- Harlequin rasbora
- Zebra danio
- Guppy
- Platy
- Betta (male)
- Dwarf gourami
- Angelfish
- Tiger barb
- Cherry barb
- Amano shrimp
- Nerite snail
- Black skirt tetra
- Rummynose tetra
- Lemon tetra
- Serpae tetra
- Bleeding heart tetra
- Congo tetra
- Diamond tetra
- X-ray tetra
- Scissortail rasbora
- Giant danio
- Rosy barb
- Gold barb
- Denison barb
- Swordtail
- Pearl gourami
- Honey gourami
- Three-spot blue gourami
- Paradise fish
- Female betta
- Firemouth cichlid
- Severum
- Electric blue acara
- Glass catfish
- Boeseman's rainbowfish
- Dwarf neon rainbowfish
- Golden wonder killifish
- Bala shark
- Mystery snail
- Ramshorn snail
- Assassin snail
- Bamboo shrimp
- Dwarf orange crayfish
- African dwarf frog
Possible with care
- Neon tetra
- Ember tetra
- Chili rasbora
- White cloud minnow
- Molly
- Bronze corydoras
- Pygmy corydoras
- Otocinclus
- Bristlenose pleco
- Kuhli loach
- Fancy goldfish
- Glowlight tetra
- Black neon tetra
- Green neon tetra
- Marbled hatchetfish
- Lambchop rasbora
- Celestial pearl danio
- Siamese algae eater
- Hillstream loach
- Endler's livebearer
- Sailfin molly
- Sparkling gourami
- German blue ram
- Bolivian ram
- Cockatoo dwarf cichlid
- Kribensis
- Convict cichlid
- Oscar
- Jack Dempsey
- Electric yellow lab
- Peacock cichlid
- Shell dweller
- Panda corydoras
- Peppered corydoras
- Sterbai corydoras
- Clown loach
- Yoyo loach
- Dwarf chain loach
- Clown pleco
- Common pleco
- Rubber lip pleco
- Pictus catfish
- Threadfin rainbowfish
- Clown killifish
- Common goldfish
- Dojo loach
- Japanese rice fish
Do not mix with
Open any pairing to see the reason.