Overview
The Lambchop Rasbora (Trigonostigma espei) is a beginner freshwater species known for its copper-orange, black mark coloration. Similar to harlequin rasbora. Mid.
Origin & Appearance
Origin: Thailand.
Colors: Copper-Orange, Black mark.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 4.0 x 0.7 x 1.2.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 73–82°F |
| pH Range | 5.5–7 |
| Water Hardness (GH) | 2-10 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Mid-water schooler; smooth gentle group swimming; very similar to harlequin but slightly smaller movements
Speed: 45/100Aggression: 1/10diurnalSchooling (8+)
Breeding
Difficult; egg depositor
Common Diseases
💊 Ich
Expert Notes
Similar to harlequin rasbora