The rosy barb (Pethia conchonius) is a semi-aggressive fish that grows to about 4.5 inches and spends its time in mid-water. Keep at least 6 together, in a tank of 30 gallons or more, at 64–72°F and pH 6–7.5.
30 galsmallest tank
4.5″adult size
64–72°Ftemperature
6–7.5pH
6+group size
Semi-aggressivetemperament
Good tankmates
Avoid
- ✕Cardinal tetra: Rosy barb and Cardinal tetra need different temperatures (64–72°F vs 73–81°F).
- ✕Glowlight tetra: Rosy barb and Glowlight tetra need different temperatures (64–72°F vs 74–82°F).
- ✕Rummy-nose tetra: Rosy barb and Rummy-nose tetra need different temperatures (64–72°F vs 75–84°F).
- ✕Congo tetra: Rosy barb and Congo tetra need different temperatures (64–72°F vs 73–82°F).
- ✕Marbled hatchetfish: Rosy barb and Marbled hatchetfish need different temperatures (64–72°F vs 75–82°F).
- ✕Golden pencilfish: Rosy barb and Golden pencilfish need different temperatures (64–72°F vs 75–82°F).
- ✕Cherry barb: Rosy barb and Cherry barb need different temperatures (64–72°F vs 73–81°F).
- ✕Guppy: Rosy barb nip fins; Guppy has long fins.
From TankCoach's own species data: common hobby guidance for adults, rounded. Individual fish vary. Not veterinary advice.