Red Tailed Black Shark
Red Tailed Black Shark is a aggressive freshwater fish that needs a tank of at least 55 gallons (208 L), water at 72-79°F (22-26°C) and a pH of 6.5-7.5.
Also searched as: rtbs, red tail shark, epalzeorhynchos bicolor
Quick facts
Highly territorial. Single specimen only. Striking black and red coloration.
| Minimum tank | 55 gallons (208 L) |
|---|---|
| Temperature | 72-79°F (22-26°C) |
| pH | 6.5-7.5 |
| Temperament | Aggressive |
| Swim level | Bottom |
| Group size | Can be kept singly |
| Tank type | Freshwater |
Good tank mates
No other species in the database passes the temperament and water checks for Red Tailed Black Shark. Check a specific pairing with the stocking guide at the end of this page.
Avoid with
Pairings that fail the temperament, water-overlap or known-conflict checks.
- Discusmin tank 50 gal
Aggressive species will harass or eat peaceful fish; no temperature overlap (72-79°F vs 82-88°F).
- Goldfishmin tank 20 gal
Aggressive species will harass or eat peaceful fish; temperature overlap 72°F is too narrow.
- African Cichlids (Mbuna)min tank 55 gal
Aggressive species should not be mixed; no pH overlap (6.5-7.5 vs 7.8-8.6).
- Peacock Cichlidmin tank 55 gal
High risk of conflict between aggressive species; no pH overlap (6.5-7.5 vs 7.8-8.6).
- Flowerhorn Cichlidmin tank 70 gal
Aggressive species should not be mixed; no temperature overlap (72-79°F vs 80-86°F).
Check your own tank
These lists compare one species against the rest of the database. Your stock list, tank size and bioload change the answer, so log your own tank.
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