Overview
The Exclamation Point Rasbora (Boraras urophthalmoides) is a intermediate freshwater species known for its gold-orange, black spot coloration. Tiny nano fish with punctuation mark-like spot. Mid.
Origin & Appearance
Origin: Southeast Asia.
Colors: Gold-Orange, Black spot.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 2.0 x 0.4 x 0.6.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 5 gallons |
| Temperature | 72–82°F |
| pH Range | 5–7 |
| Water Hardness (GH) | 1-6 |
| Bioload | very-high |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Tiny nano swimmer; hovers in mid-water among plants; very subtle movements; holds position with micro-adjustments
Speed: 45/100Aggression: 1/10diurnalSchooling (10+)
Breeding
Difficult; micro egg scatterer
Common Diseases
💊 Sensitive
Expert Notes
Tiny nano fish with punctuation mark-like spot