fish-tank › fish species
Rummynose Tetra (Hemigrammus rhodostomus)
Red nose fades when stressed — living water-quality indicator. Strict blackwater; harder water keeps them dull.
Specifications
- ecosystem
- freshwater
- min tank gallons
- 30
- adult size in
- 2
- temperature range f
- 75-82
- ph range
- 5.5-6.8
- gh range dgh
- 1-8
- care difficulty
- intermediate
- aggression
- peaceful
- community compatible
- yes
- schooling min count
- 8
- diet
- omnivore
- lifespan years
- 5-6
- tank zone
- middle
Sources
- Aquarium Co-Op video / blog content · ingest 2026-05-06
- Practical Fishkeeping public articles · ingest 2026-05-06
- r/Aquariums + r/PlantedTank + r/ReefTank public threads · ingest 2026-05-06