Pacu
Pacu is a peaceful freshwater fish that needs a tank of at least 2000 gallons (7571 L), water at 75-82°F (24-28°C) and a pH of 6-8.
Also searched as: pacu, colossoma macropomum
Quick facts
Grows to 3+ feet. Often sold as babies. Needs pond. Vegetarian.
| Minimum tank | 2000 gallons (7571 L) |
|---|---|
| Temperature | 75-82°F (24-28°C) |
| pH | 6-8 |
| Temperament | Peaceful |
| Swim level | Middle |
| 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. Both species are peaceful.
- Siamese Algae Eatermin tank 30 gal
Temperature overlap 75-79°F, pH overlap 6-8. Both species are peaceful.
- Rummy Nose Tetramin tank 10 gal
Temperature overlap 75-81°F, pH overlap 6-7. Both species are peaceful.
- Guppymin tank 5 gal
Temperature overlap 75-82°F, pH overlap 6.8-7.8. Both species are peaceful.
- Mystery Snailmin tank 5 gal
Temperature overlap 75-82°F, pH overlap 7.2-8. Both species are peaceful.
- Redfin Prochilodusmin tank 180 gal
Temperature overlap 75-82°F, pH overlap 6-7.5. Both species are peaceful.
- Bala Sharkmin tank 150 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Both species are peaceful.
- Royal Plecomin tank 125 gal
Temperature overlap 75-82°F, pH overlap 6.5-7.5. Both species are peaceful.
Avoid with
Pairings that fail the temperament, water-overlap or known-conflict checks.
Aggressive species will harass or eat peaceful fish.
Oscar Fishmin tank 55 galRed Tail Catfishmin tank 1500 galAfrican Tiger Fishmin tank 500 galVampire Tetramin tank 500 galArowanamin tank 250 gal
Check your own tank
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