Mustached Danio

Mustached Danio (Danio dangila) is the largest true Danio species — reaching up to 6 inches and with a robust, silvery body and the extraordinarily long barbels that give it its name. The barbels extend well beyond the snout, creating the 'mustache' effect that is immediately distinctive. Despite its size, it retains the active, peaceful schooling character of the danio family.

Feeding & Care Tip: Sera Vipan Tropical Flakes and Hikari Micro Pellets make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Bloodworms or Hikari Vibra Bites to enhance color and condition. Hikari Frozen or Freeze-Dried Baby Brine Shrimp are an excellent additional treat. Feed small amounts 2–3 times daily. A tight-fitting lid is strongly recommended — danios are enthusiastic jumpers.

Native to rivers of northeastern India, Bangladesh, Bhutan, Nepal, and Myanmar — a wide range across the northern South Asian hill stream systems. The largest danio by a considerable margin — most Danio species top out at 2–3 inches, making the 6-inch Mustached Danio genuinely unusual within the genus. Inhabits clear, fast-flowing, well-oxygenated rivers and streams.

Keep in groups of at least six. The Mustached Danio is an excellent dither fish for medium to large aquariums alongside larger tetras, barbs, and peaceful cichlids. Its size and active nature make it too boisterous for nano setups. A long aquarium of at least 4 feet allows a proper school to develop its natural schooling behavior.

Danios are prolific and easy egg-scatterers that spawn with little encouragement in a well-maintained aquarium. Males chase females vigorously before spawning among fine-leaved plants or over the substrate. Eggs and fry receive no parental care — adults will eat eggs if given the chance. For intentional breeding, a separate shallow tank with spawning mops or fine-leaved plants, slightly warmer water, and removal of adults after spawning is straightforward and reliable. Wild populations of D. dangila have declined in some parts of their range due to collection pressure — the IUCN notes that captive breeding has been achieved and recommends it to reduce wild harvest.

Care & Ideal Parameters