The aim of this research was to evaluate the use of additives in fodders for common carp (Cyprinus carpio L.). The experiment was carried out for a period of 257 at the fish farm from Mărtineşti in the county Cluj. The fish ware divided in 6 groups, LM-control group and 5 experimental groups; the fodder for the experimental groups was supplemented with Allzyme SSF (L1E), Bio-Mos (L2E), Allzyme SSF and Bio-Mos (L3E), Allzyme SSF and SelPlex (L4E) and Allzime SSF, Bio-Mos and Sel-Plex (L5E). Each batch contained 100 fish divided as it fallows: 50 common carp from Lausitz var. and 50 common carp from Galitian var. The average weight for both varieties of common carp was 1.5 g/ specimen. The groups were distributed in 6 cages with 150 mp. The best results regarding growing indices for Galitian var. ware obtained by L4E group with medium weight (MW) of 791.73±35.05g and the survival rate (SR) of 94%, compared with LM group (MW=743.37±39.20g and SR= 88%). In the case of Lausitz var. the best MW was obtained by L1E with 908.36±34.33g compared with LM (MW= 794.66±26.61g) and the best survival rate was obtained by L4E and L5E with SR=94% compared with LM (SR= 76%). The results reveal that the supplementation of fodder for both varieties of common carp (Lausitz and Galitian var.) carp with used additives determined a better growing rate and a better survival rate.