the clown featherback (chitala ornata), also known as the clown knifefish and spotted knifefish

animal underwater aquarium reef fish blue wildlife organism sea coral reptile invertebrate clown featherback chitala ornata knifefish spotted actinopterygii animal aquarium aquatic asian biology chitala ornata closeup featherback knifefish entertainment exotic fauna fish freshwater freshwater life malaysia nature notopteridae one river swim tropical underwater scene water wild