fish-tank › fish species
Dwarf Neon Rainbowfish (Melanotaenia praecox)
Compact rainbow — males flash electric blue against red fins; great mid-size schooler.
Specifications
- ecosystem
- freshwater
- min tank gallons
- 20
- adult size in
- 2.5
- temperature range f
- 73-82
- ph range
- 6.5-7.5
- gh range dgh
- 8-15
- care difficulty
- beginner
- aggression
- peaceful
- community compatible
- yes
- schooling min count
- 6
- diet
- omnivore
- lifespan years
- 3-5
- tank zone
- mid
Sources
- Aquarium Co-Op video / blog content · ingest 2026-05-06
- Practical Fishkeeping public articles · ingest 2026-05-06