Water quality parameters (temperature, DO and pH) were within
the ranges for healthy growth for both tilapia and Mayan cichlid
affect overall survival, FCR or tilapia growth. Tilapia did not show intraspecific
competition in the different treatments, because feeding
of commercial formulated diet for tilapia was adjusted to the biomass
of each tank, so there were no differences in feed availability
for this species among treatments. The presence of theMayan cichlid
in different proportions did not affect tilapia performance (survival,
growth and CF) and did not affect the growth of tilapia males or females.
This shows that the Mayan cichlid, under the tested size and
proportions, can be grown in polyculture with tilapia with no negative
effects on its performance.