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A total of 300 bacterial isolates of Aeromonas spp. were isolated from diseased Red Hybrid Tilapia, Oreochromis sp. All the bacterial isolates were tested for antibiotic susceptibility against 16 types of antibiotics by using disk diffusion method. The antibiotics tested in this study were nalidixic acid (30 µg/disk), oxolinic acid (2 µg/disk), compound sulphonamides (300 µg/disk), doxycycline (30 µg/disk), tetracycline (30 µg/disk), novobiocin (30 µg/disk), chloramphenicol (30 µg/disk), kanamycin (30 µg/disk), sulphamethoxazole (25 µg/disk), flumequine (30 µg/disk), erythromycin (15 µg/disk), ampicillin (10 µg/disk), spiramycin (100 µg/disk), oxytetracycline (30 µg/disk), amoxycillin (25 µg/disk) and fosfomycin (50 µg/disk). Heavy metal resistance pattern of the present bacterial isolates against mercury (Hg2+), chromium (Cr6+), copper (Cu2+) and Zinc (Zn2+) was also determined by using two fold agar dilution method. The …