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 margaritatus with a markedly blunt snout, measuring just 2–2.5 cm standard length. The body is about three times as long as it is high. In general shape, it resembles "Danio erythromicron" more than any other known species. This species shows some sexual dimorphism: males have a bright-blue background color (dull blue-green in females), and their fins are more brightly colored. The tail end of their bodies (the caudal peduncle) is also higher than in females. The body is sprinkled with small, pearly dots. The back is bronzy green, and the belly in females is yellowish-white. The gill covers are transparent, letting