Harlequin Rasbora Stats Minimum Tank Size: 10 Gallons Care Level: Very Easy Water Conditions: 6.0-7.8 and Very Soft to Moderately Hard Temperature: 22–27 °C (71.5–80.5 °F) Maximum Size: 1.5 inches (4cm) The Harlequin Rasbora (originally named Rasbora heteromorpha, but recently changed to Trigonostigma heteromorpha) is a small fish native to Southeast Asia. It mainly … [Read more...] about Harlequin Rasbora – The Care, Feeding and Breeding of Harlequin Rasboras