Pristella maxillaris taken by me user debivort november 2006
Date 11 November 2006
Author Debivort https://en.wikipedia.org/wiki/User:Debivort
Source: https://commons.wikimedia.org/wiki/File:Pristella_tetra1.jpg

The X-ray fish or X-ray tetra (Pristella maxillaris) is freshwater fish species with translucent body. It is a widely distributed and adaptable fish, found in the Amazon and Orinoco basins, as well as coastal rivers in the Guianas in both acidic and alkaline waters.