Junior Tetra
Hyphessobrycon robustulus
Junior Tetra is a peaceful middle-to-top swimmer.
Save this fish or add it directly to one of your aquariums.
Quick facts
- Adult size
- ≤ 4.5 cm (≤ 1.8 in)
- Aquarium size
- 50 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Peaceful
- Swimming zone
- Middle to top swimmer
- Temperature
- 23–26 °C
- pH
- 6–7.5
- GH
- 2–8 dGH
- Diet
- Omnivore
- Lifespan
- up to 5 years
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 50 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 23–26 °C, pH 6–7.5, GH 2–8 dGH.
Temperament and compatibility
Junior Tetra is peaceful and suits calm community fish.
Swimming zone and behavior
This fish uses the middle to upper part of the aquarium, so leave enough open swimming space for movement and feeding.
Feeding
As an omnivore, Junior Tetra should receive a varied diet rather than one repeated food type.
Natural habitat and origin
Origin: Peru.
Before adding this fish
- Plan for an aquarium of 50 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length.
- Avoid aggressive or highly competitive fish.
- Offer a varied diet that matches this species.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Junior Tetra get?
Junior Tetra reaches ≤ 4.5 cm (≤ 1.8 in).
What aquarium size does Junior Tetra need?
Use an aquarium of at least 50 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length.
Is Junior Tetra peaceful?
Yes. Junior Tetra is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.
What temperature is suitable for Junior Tetra?
Keep it between 23 to 26 °C.