Nowadays the production of resistant larva with high survival and desirable growth is so important in aquaculture industry. Due to the fact that larvae’s digestion is not completed after the absorption of yolk sac, the alive food should be used in this step. In this investigation, the Iranian Acipenser percicus larva growth and survival in 3 treatments feeding on 3 alive foods, Caspian Sea Acartia, Artemia and Daphnia were studied and each treatment in 3 replicates were done during 14 days. Experimental larval  feeding results showed significant difference  in final weight indicators, survival rate, food  conservation ratio, gain weight percentage, specific growth and daily growth (p<0.05). The final obtained results showed that the best growth indicators were gained in the treatment fed by Caspian Sea Acartia was and the treatments fed by Artemia and Daphnia were placed in further ratings