Blue Black Arowana

[Hao]

omg for gawd sakes black and blue are same species and ppl usually call baby blacks and subadults and adults blue ok? gawd

 

[AU_Arowana-RG]

Umm, I already knew that they were the same species.

The thing I want to know is whether Osteoglossum Ferreirai's blue specimens are naturally occuring (Or captive bred) color variants as with how Motoro Stingrays have different colorings and patterning in different areas.

 

[ptownmonsterfish]

My black turn blue after she started to accept pellets.

 

[Hao]

blacks develop blue as they grow

 

[David R]

The thing I want to know is whether Osteoglossum Ferreirai's blue specimens are naturally occuring (Or captive bred) color variants as with how Motoro Stingrays have different colorings and patterning in different areas.

I have never seen a pic showing different enough colouration to be considered anything more than natural variation. Different lighting, diet, surroundings and origins will all effect the colouration of the fish to a degree, so IMO blue and black are exactly the same thing.