This week was implemented in the Marine Biology Station of Dichato an indoor micro / mesocosm to perform Ocean Acidification experiments with different types of marine organisms. The system allows to manipulate temperature, radiation levels and pH / CO2, allowing to simulate very accurately the current and future concentrations of CO2 in the ocean. Initially the system achieves two concentrations, but in the short term will be able to reach up to 3-4 levels of pH / CO2 in experimental conditions. The system implementation had the valuable assistance of Dr. (c) Laura Ramajo, at the Mediterranean Institute for Advanced Studies (IMEDEA – Spain) and adjunt research, Dr. Nelson Lagos, supported by a team of assistants and students MUSELS. This system will be used for the development of studies of our researchers and master students (eg Rosario Diaz), PhD (Valeska San Martin) and postdocs, and initially will be used for the experimental activities of the next Latin-American Workshop on Ocean Acidification (LAOCA 2014). The system was funded with support from the Center for the Study of Multiple drivers on Socio-Ecological Marine systems, MUSELS and support the Millennium Institute of Oceanography (IMO) of which Dr. Vargas is also an associate research.