Blue corydoras
The blue corydoras or Natterer's catfish is a species of freshwater ray-finned fish belonging to the subfamily Corydoradinae, the corys, of the family Callichthyidae, the armoured catfishes. This catfish is endmeic to eastern Brazil, where it is found from Espírito Santo to Paraná.
Etymology
The blue corydoras has a specific name, nattereri, which honours Franz Steindachner's fellow Austrian, the naturalist and explorer Johann Natterer, who collected the holotype of this species.
Description
The fish has clear fins with no pattern. The ventrals are light, opaque yellow. Highlights seen about the gill plates are green. The belly is yellowish. It has a pronounced dark stripe along the length of the body. The general color of the body is light, tending towards yellow. Its eyes are gold. It will grow in length up to.
Habitat
It lives in a tropical climate in water with a 6.0 – 8.0 pH, a water hardness of 2 – 25 dGH, and a temperature range of. It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation, and adults do not guard the eggs.
The blue corydoras is of commercial importance in the aquarium trade industry.