**6. Postlarvae culture**

After first feeding, the larvae pass on to the postlarval culture stage, the obtained larvae are fed only with inert diets for a period about 140 days, the optimum conditions in this phase are 13º C, 15-16 g\*L-1salinity, a density of 10 kg \* m-3, an exchange ratio 0.33 of the tank capacity daily, for the postlarvae culture, a total of 33300000 individuals are used with an equivalent biomass of 10000 kg (Bórquez et al., 2003; Dantagnan et al., 2007; Mardones et al., 2008). It is necessary a density of 10 kg \* m-3, 1000 m3 of culture capacity, that representing 125 tanks of 8 m3 in use for 300 days, based on the quantitative data presented here, at the end of the larval culture phase 10 tonnes of junveniles will be produced (Mardones et al., 2008).
