Species profile
Glass Bloodfin Tetra
Prionobrama filigera
Peaceful
Easy care
80 L minimum aquarium
5–6 cm adult size
Top mid
Minimum group: 8
About this species
General notes for hobby use.
Transparent, active shoaling tetra. Keep a proper group and leave open horizontal swimming space.
Water parameters
Suggested general range for long-term care.
Temperature
23–27 °C
pH
6–7.8
GH
2–15 dGH
KH
Not yet documented
Flow preference
Low–moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 8
Tank zone
Top mid
Territory level
None
Predation risk
Tiny fry
Bioload factor
0.6
Peaceful schooling characin. Groups of eight or more reduce stress and produce better natural movement; use a lid because active surface-oriented tetras can jump.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
No
Digs substrate
No
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Omnivore
Minimum aquarium volume
80 L
Minimum footprint
80 × 30 cm
Accepted scientific name
Prionobrama filigera
Alternative names
Glass Bloodfin Tetra, Glass Bloodfin, Prionobrama filigera
Native range
Amazon basin in South America.
Natural habitat
Open marginal and channel habitats. A planted perimeter with darker cover and a long open swimming lane suits the species.
Diet & feeding
Small omnivore/insectivore. Feed appropriately sized quality dry foods plus frozen/live small invertebrates.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females are generally larger/deeper-bodied when mature; males are slimmer.
Breeding
Egg-scattering characin with no parental care; adults may eat eggs and fry.