This study focused on the isolation of bacteria causing hemorrhagic septicemia to longnose parrot fish in the Fishery Port at Hurghada Red Sea, Egypt. The examined fish showed hemorrhagic skin ulcers in the head, fins and body. Water sample was taken to determine the water physico-chemical properties and also to identic their relationship with the incidence of the bacterial hemorrhagic septicemia.Full bacteriological, biochemical, and molecular characterization of the isolated bacterium were done. The isolated bacterial isolate was identified as Carnobacteriummaltaromaticum. It is Gram positive, non-spore forming rods, salt requiring, chitinolytic, Β-hemolytic bacteria. The antibiotic sensitivity test indicated that the isolate was sensitive to ofloxacin, gentamycin, ampicillin, streptomycin, erythromycin, nalidixicacid, amikacin, ciprofloxacin, colistin, chloramphinacol, neomycin, doxycycline, aminocidin, sulfisoxazole, penicillin G, bacitracin, and cefaclor. The incidence of infection with C.maltaromaticum among fish in the Fishery port was about 13%. In this context, this is the first report of Carnobacteriummaltaromaticum from longnose parrot fish in warm water.