The lemon tetra (Hyphessobrycon pulchripinnis) is a peaceful fish that grows to about 2 inches and spends its time in mid-water. Keep at least 6 together, in a tank of 20 gallons or more, at 72–82°F and pH 5.5–7.5.
20 galsmallest tank
2″adult size
72–82°Ftemperature
5.5–7.5pH
6+group size
Peacefultemperament
Good tankmates
Avoid
- ✕Paradise fish: Paradise fish is aggressive and best kept alone.
- ✕Angelfish: Angelfish grows big enough to eat Lemon tetra.
- ✕Convict cichlid: Convict cichlid is aggressive and best kept alone.
- ✕Oscar: Oscar is aggressive and best kept alone.
- ✕Pea puffer: Pea puffer is aggressive and best kept alone.
From TankCoach's own species data: common hobby guidance for adults, rounded. Individual fish vary. Not veterinary advice.