Dwarf Neon Rainbowfish Care & Compatibility
Melanotaenia praecox
A small, electric-blue rainbowfish with red fins. Peaceful and perfect for planted community tanks in a shoal.
Min 20 gal 2.5" adult Peaceful Easy care 73-82°F
Care requirements
| Scientific name | Melanotaenia praecox |
|---|---|
| Group | Rainbowfish |
| Adult size | 2.5 in (6.3 cm) |
| Minimum tank | 20 gallons |
| Temperature | 73-82°F |
| pH | 6.5-7.5 |
| Hardness | 8-15 dGH |
| Temperament | Peaceful |
| Social | Schooling (keep 6+) |
| Diet | Omnivore |
| Swim level | Mid |
| Care level | Easy |
| Lifespan | ~4 years |
Quick answers: tank size · temperature · pH & hardness · tank mates
Best tankmates for Dwarf Neon Rainbowfish
Neon Tetra
Ok · 20 gal+
Cardinal Tetra
Ok · 20 gal+
Guppy
Ok · 20 gal+
Endler's Livebearer
Ok · 20 gal+
Platy
Ok · 20 gal+
Molly
Ok · 20 gal+
Swordtail
Ok · 20 gal+
Dwarf Gourami
Ok · 20 gal+
Pearl Gourami
Ok · 30 gal+
Honey Gourami
Ok · 20 gal+
Avoid keeping with
White Cloud Mountain Minnow
Not recommended
Frequently asked questions
What size tank does a Dwarf Neon Rainbowfish need?
A Dwarf Neon Rainbowfish needs a minimum of 20 gallons. Because it is a schooling fish, keep a group of at least 6, which may require more space.
Is the Dwarf Neon Rainbowfish good for beginners?
The Dwarf Neon Rainbowfish is rated easy to care for. It is a great choice for beginners.
What water parameters does a Dwarf Neon Rainbowfish need?
Keep Dwarf Neon Rainbowfish at 73-82°F, pH 6.5-7.5, and hardness 8-15 dGH.
How many Dwarf Neon Rainbowfish should I keep together?
Keep at least 6 together — they are happier and less stressed in a group.