| Harlequin Rasbora | Tropical Fish Guide |
| Size | 1.75 inches or 4.5 cm |
| Fish Hardiness | Easy to care for |
| Water Temperature | 71.6 - 82.4°F or 22 - 28°C |
| Water pH | 5.5 - 7.7 pH |
| Water Hardness | 1 - 15 dGH |
| Peaceful or Aggressive | Peaceful shoaling fish |
| Number of same species in tank | Four or more, more is better |
| Community Fish | Yes |
| Sexes | Males are smaller and slimmer with a more prominent black triangle shape on them than the larger, paler females |
| Strata | Middle to top |
| Food | Flake food, blood worms and brine shrimp |
| Breeding | Not very easy to breed |
| Breeding temperature | 78.8 - 82.4°F or 26 - 28°C |
| Scientific name | Trigonostigma heteromorpha or Rasbora heteromorpha |
| Lifespan | 5 years |
Ideal Harlequin Rasbora Conditions
Appearance
This is another species of colorful tropical freshwater fish. Their main body color is orange to gold with a very distinctive black triangle on the rear lower part on each side of the body.
Peaceful, Community
They are fairly active but peaceful fish and ideal for a community aquarium setup. Slow introduction into your aquarium is advisable as they tend to be a bit fragile during transition.
Strata
They prefer the middle to top parts of the aquarium.
You can keep four or more of these in a tank but in a shoal they do better and also of makes a better impression. Like most shoaling fish they want a good balance between planted areas for hiding and open areas for swimming.