Overview
The Boesemani Rainbowfish (Melanotaenia boesemani) is a intermediate freshwater species known for its blue (front), orange-yellow (rear) coloration. Blue front / orange rear split. Mid to Top.
Origin & Appearance
Origin: Papua New Guinea.
Colors: Blue (front), Orange-Yellow (rear).
Body Shape: Deep Fusiform (oval/robust). Typical adult dimensions: 11.0 x 2.2 x 4.4.
Sexual Dimorphism: Strong; males more vivid colors and larger fins.
Tank & Water Requirements
| Min Tank Size | 30 gallons |
| Temperature | 81–86°F |
| pH Range | 7–8 |
| Water Hardness (GH) | 8-15 |
| Bioload | medium |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Mid to Top |
Behavior & Activity
Active mid-to-upper schooling swimmer; males display with flared fins and intense color flashing at dawn; needs open swimming lanes
Speed: 55/100Aggression: 2/10diurnalSchooling (6+)
Breeding
Moderate; egg scatterer among mops/plants
Common Diseases
💊 Ich
Expert Notes
Blue front / orange rear split