Here are 20 interesting facts about harlequin rasboras:
Harlequin rasboras are native to Southeast Asia, where they can be found in the clear, slow-moving streams and rivers of Malaysia, Thailand, and Sumatra.
They are a peaceful and social species that do well in groups of at least six individuals.
Harlequin rasboras have a distinctive black triangle on their bodies, which is bordered by a bright red or orange stripe.
They have a silver body that can appear iridescent in certain lighting.
Harlequin rasboras are small fish, typically reaching only 1-2 inches (2.5-5 cm) in length.
They are a schooling fish, meaning that they feel more comfortable and secure when swimming together in a group.
Harlequin rasboras are easy to care for and are suitable for beginner aquarists.
They prefer slightly acidic to neutral water with a pH range of 6.0-7.5 and a temperature range of 72-80°F (22-27°C).
Harlequin rasboras are omnivorous and will eat a variety of foods, including flakes, pellets, and live or frozen foods like brine shrimp and bloodworms.
They are active swimmers and enjoy having plenty of swimming space in their aquarium.
Harlequin rasboras are peaceful and can be kept with a variety of other fish species, including other rasboras, tetras, and peaceful community fish.
They are not aggressive and are unlikely to harm other fish or plants in the aquarium.
Harlequin rasboras are relatively hardy fish and can tolerate a range of water conditions, but they prefer a well-filtered tank with plenty of hiding places and plants.
They are a popular and common species in the aquarium trade and can be found in many pet stores and online retailers.
Harlequin rasboras are often used as a "dither fish" in aquariums, which means that their active and colorful swimming behavior can help to calm more skittish fish species and make them feel more secure.
They have a lifespan of around 3-5 years in captivity if provided with proper care and a suitable environment.
Harlequin rasboras are often confused with similar-looking species like the espei rasbora and the lambchop rasbora.
They are relatively hardy and disease-resistant, but can be susceptible to diseases like ich and fin rot if the water quality in their aquarium is poor.
Harlequin rasboras have been selectively bred for their colors and patterns, resulting in a wide variety of unique and vibrant strains.
They are a beautiful and fascinating fish species that can provide years of enjoyment to aquarium enthusiasts of all levels.
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