weight was measured with an Ohaus 480 scale balance (0.001g) using the difference between a known water volume and one with fry. Also, during 135 days (November 1st to March 15th), using the three different diets mentioned before, the instantaneous total mor- tality rate (Z) was estimated for 80 larvae/40 L aquarium through the Beverton & Holt (1959) method and described in Ricker (1975), Nt=N0 e –Z t, where N0 and Nt are the number of born fish larvae at the beginning and at the end of the period of the culture time (t). Survival (S) of eggs and larvae was also calculated as follows, S=Nt/N0 and mortality M=1- S, expressed as percentage. The Excel program was used. The multiple comparisons of Tukey of the growth slops were estimated.