Credit: Wilder Rodriguez Arteaga (Peru)

The culture of rainbow trout (Oncorhynchus mykiss) in Peru contributes to the national fish production as well as in the export. Trout farming is done at altitude in excess of 3500 m altitude; although the lower altitude of 2000 m may suit their farming better.

The two photos show a part of water quality management in a trout farm in Peru including the daily cleaning of the culture units of the bottom accumulated wastes (feces and feed waste) while the second photo shows checking and recording of water temperature. Always, well trained technicians carry out the measurements of water quality.