Bengal danio Bengal danio The Bengal danio or Sind danio ("Devario devario") is a subtropical fish belonging to the minnow family (Cyprinidae). Originating in Pakistan, India, Nepal, Bangladesh, and Afghanistan, this fish is sometimes kept in community tanks by fish-keeping hobbyists. It grows to a maximum length of . In the wild, the Bengal danio is found in rivers, ponds, and fields in a subtropical climate; it prefers water with a pH of 6.0–8.0, a water hardness of 5.0–19.0 dGH, and an ideal temperature range of . Their diets consist of annelid worms, small crustaceans, and insects. The Bengal danio is oviparous.
Danio annulosus species of the Danio identified. Just like all the chain danios "Danio annulosus" has chain like pattern instead of the striped patterns of zebra danios. As all the chain danios, Danio annulosus has the same color pattern containing a series of dark rings with light color space beside it, a complete lateral line, 14 circumpendular scales, have the first ray in the pectoral fin and a black humeral spot. "Danio annulosus" is different from the rest of the Puntius species by many features such as a much shorter pecotal and pelvic fins, the humeral spot is a bit wider and