Mascara Barb Care Guide
Dawkinsia assimilis · Freshwater Fish
What Mascara Barb look like
Dawkinsia assimilis, commonly known as the Mascara Barb, exhibits a fusiform body shape that typically reaches a maximum adult size of 4-5 inches (10-12.5 cm). This species is characterized by its striking silver body adorned with subtle dark markings around the eyes, resembling mascara, which serve as a distinguishing feature. The presence of these dark eye markings is particularly pronounced in mature individuals, enhancing their aesthetic appeal. Sexual dimorphism is evident, with males often displaying more vibrant coloration and slightly elongated fins during the breeding season. The species possesses a well-developed lateral line system, which aids in detecting water movements, and features a single dorsal fin that is moderately high and set towards the rear of the body. The anal fin is also well-formed, contributing to its streamlined swimming abilities. Defensive adaptations include a schooling behavior that provides safety in numbers, as well as the ability to quickly dart away from potential threats.
Behavior & temperament
The Mascara Barb is a social species that thrives in groups, exhibiting a strong tendency to form schools in the mid to upper water column of their natural habitat. They are typically found in flowing rivers and streams in South Asia, where they prefer areas with moderate current and ample vegetation. Their social hierarchy is relatively egalitarian, with no strict dominance structure observed within schools. Breeding behavior is characterized by egg scattering, where females release eggs into the water column, allowing males to fertilize them externally. During this period, males may exhibit increased aggression towards one another as they compete for the attention of females. Overall, the Mascara Barb is known for its peaceful temperament, making it an excellent addition to community aquariums.
Diet & feeding
In the wild, the Mascara Barb is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they require a balanced diet consisting of high-quality flake food, supplemented with live or frozen foods such as daphnia, brine shrimp, and vegetable matter to ensure optimal health and coloration.
Behind the name
Dawkinsia (named after the British zoologist Sir William Dawkins); assimilis (Latin for 'similar' or 'resembling').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Mascara Barb?
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