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Harlequin Rasbora

The 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 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

Customer Reviews

Based on 49 reviews
88%
(43)
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S
Susan Frankel
Harlequin Rasbora

Beautiful coloration on these sprite little fish. The striking contrast between the black triangle and gold body make them look as if they are formally dressed for a fish celebration. They look beautiful swimming around the tank as a school. I’m thrilled with these in my fish family.

A
Allana Seda
Little guy is healthy and active

5 stars my baby harlequin is active and healthy. Shipping was professional and quick.

A
Annemarie Van Gyn
Harlequin Rasbora

Awesome schooling fish! Love watching them swim around the tank. Arrived in great shape, packing and shipping was great.

C
CRYSTI STEVENSON
Cutest fish!

Arrived healthy and happy! Mingled immediately with my other Harlequins! Fast shipping, excellent packing and got a extra fish! A Swedish Fish! :) DEFINITELY would buy from again! Thank you Tyler & Rob! PS: Rob, more videos! :)

S
Steve D
Rasboras

Awesome I’ve been trying to find these , they are not red and black, they are orange and black. I bought some a few years ago from absolutely fish in New Jersey. I lost a few over time. So glad I got these .