Filament Tetra
Bryconaethiops microstoma
Filament Tetra is a peaceful middle-to-top swimmer.
Save this fish or add it directly to one of your aquariums.
Quick facts
- Adult size
- ≤ 15 cm (≤ 5.9 in)
- Aquarium size
- 140 L or larger / ≥ 100 cm (≥ 39.4 in) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Peaceful
- Swimming zone
- Middle to top swimmer
- Temperature
- 24–28 °C
- pH
- 6–7.5
- GH
- 8–18 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: 140 L or larger / ≥ 100 cm (≥ 39.4 in) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 24–28 °C, pH 6–7.5, GH 8–18 dGH.
Temperament and compatibility
Filament 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, Filament Tetra should receive a varied diet rather than one repeated food type.
Before adding this fish
- Plan for an aquarium of 140 L or larger / ≥ 100 cm (≥ 39.4 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 Filament Tetra get?
Filament Tetra reaches ≤ 15 cm (≤ 5.9 in).
What aquarium size does Filament Tetra need?
Use an aquarium of at least 140 L or larger / ≥ 100 cm (≥ 39.4 in) minimum length.
Is Filament Tetra peaceful?
Yes. Filament 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 Filament Tetra?
Keep it between 24 to 28 °C.