Matrinchã

 

It is a member of the Brycon family and is native to rivers in Guyana, Suriname and French Guiana including the Amazon and Orinoco River basins in South America. They are omnivores, eating both fish and plants. It has a maximum length of 48.9cm (about 19 in) and a  max published weight of 2.7 kg  (about 6 pounds). https://www.zazzle.com/matrincha_poster-228324730709870472