Black Harlequin Rasbora

The Black Harlequin Rasbora, Rasbora heteromorpha, is very stunning nano fish. Reaching a max size of about 1 inch, these fish are a great addition to any community tank. They have an amazing coloration of orange while having a pork chop shaped dark patch toward their tail. 

Please Note: All fish shipments have a 100% Live Arrival Guarantee when shipping with FedEx Overnight (1 Day) option. All other options void our Live Arrival Guarantee for fish. 

Like most nano fish, the Harlequin Rasbora does best in groups of 10. They prefer to have open space to switch in the aquarium. In nature they come from soft acidic water. Leaves, driftwood and cones come in handy to reproduce their natural habitat. They are very hardy and accept a wide range of parameters. 

We feed these guys a mix of frozen daphnia, baby brine and cyclops. 

Our Tank Parameters

• Ph: 7.2 to 7.5
• Gh: 8 to 16
• Kh:  4 to 7
• TDS: 180 to 250
• Temp: 70 to 74

Tank Recommendations

• Leaves: Indian Almond or Guava
• Wood: Malaysian or Mopani
• Cones: Alder Cones
• Other: A buffered substrate as they prefer soft acidic water