The guppy (Poecilia reticulata) is a peaceful fish that grows to about 2 inches and spends its time near the surface. Keep at least 3 together, in a tank of 10 gallons or more, at 72–82°F and pH 6.8–8.
10 galsmallest tank
2″adult size
72–82°Ftemperature
6.8–8pH
3+group size
Peacefultemperament
Good tankmates
Avoid
- ✕Black skirt tetra: Black skirt tetra nip fins; Guppy has long fins.
- ✕Serpae tetra: Serpae tetra nip fins; Guppy has long fins.
- ✕Tiger barb: Tiger barb nip fins; Guppy has long fins.
- ✕Rosy barb: Rosy barb nip fins; Guppy has long fins.
- ✕Betta: Betta attacks, or is attacked by, Guppy.
- ✕Dwarf gourami: Dwarf gourami attacks, or is attacked by, Guppy.
- ✕Paradise fish: Paradise fish is aggressive and best kept alone.
- ✕Angelfish: Angelfish grows big enough to eat Guppy.
From TankCoach's own species data: common hobby guidance for adults, rounded. Individual fish vary. Not veterinary advice.