× crosspec / fish-tank / devices / fish_rummynose_tetra
live fish-tank v0.1 · 276 entities

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

  1. Aquarium Co-Op video / blog content · ingest 2026-05-06
  2. Practical Fishkeeping public articles · ingest 2026-05-06
  3. r/Aquariums + r/PlantedTank + r/ReefTank public threads · ingest 2026-05-06