Overview
The Forktail Blue-Eye Rainbowfish (Pseudomugil furcatus) is a intermediate freshwater species known for its silver-blue, yellow fins coloration. Yellow finnage. Mid.
Origin & Appearance
Origin: Papua New Guinea.
Colors: Silver-Blue, Yellow fins.
Body Shape: Deep Fusiform (oval/robust). Typical adult dimensions: 6.0 x 1.2 x 2.4.
Sexual Dimorphism: Strong; males more vivid colors and larger fins.
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 75–82°F |
| pH Range | 7–8 |
| Water Hardness (GH) | 8-15 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Active mid-level swimmer; males perform morning display dances with forked tail spread; moderate schooling
Speed: 42/100Aggression: 2/10diurnalSchooling (6+)
Breeding
Moderate; egg scatterer among mops/plants
Common Diseases
💊 Ich
Expert Notes
Yellow finnage; peaceful