Bichir
Bichir is a semi-aggressive freshwater fish that needs a tank of at least 90 gallons (341 L), water at 75-82°F (24-28°C) and a pH of 6.5-7.5.
Also searched as: bichir, polypterus, dinosaur eel
Quick facts
Primitive predator. Will eat tank mates that fit in mouth. Needs tight lid.
| Minimum tank | 90 gallons (341 L) |
|---|---|
| Temperature | 75-82°F (24-28°C) |
| pH | 6.5-7.5 |
| Temperament | Semi-aggressive |
| Swim level | Bottom |
| Group size | Can be kept singly |
| Tank type | Freshwater |
Good tank mates
Ranked by water overlap and temperament, using the same checks as the MyAquaLog compatibility tool.
- Plecostomusmin tank 30 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Semi-aggressive species may stress peaceful fish.
- Siamese Algae Eatermin tank 30 gal
Temperature overlap 75-79°F, pH overlap 6.5-7.5. Semi-aggressive species may stress peaceful fish.
- Dwarf Gouramimin tank 10 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Both species may compete; monitor for aggression.
- Betta Fishmin tank 5 gal
Temperature overlap 76-82°F, pH overlap 6.5-7.5. Both species may compete; monitor for aggression.
- Black Ghost Knifemin tank 100 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Both species may compete; monitor for aggression.
- Silver Dollarmin tank 75 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Semi-aggressive species may stress peaceful fish.
- Royal Plecomin tank 125 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Semi-aggressive species may stress peaceful fish.
- Horseface Loachmin tank 55 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Semi-aggressive species may stress peaceful fish.
Avoid with
Pairings that fail the temperament, water-overlap or known-conflict checks.
- Tropheusmin tank 75 gal
High risk of conflict between semi-aggressive and aggressive species; no pH overlap (6.5-7.5 vs 8-9).
- African Cichlids (Mbuna)min tank 55 gal
High risk of conflict between semi-aggressive and aggressive species; no pH overlap (6.5-7.5 vs 7.8-8.6).
High risk of conflict between semi-aggressive and aggressive species.
Oscar Fishmin tank 55 galPiranhamin tank 100 galFlowerhorn Cichlidmin tank 70 gal
Check your own tank
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