Understanding the interactions between physiochemical parameters and pathogenic microorganisms is critical in maintaining the health status of fish farms. This study evaluated the impact and correlation of physiochemical parameters of water from various culture environments on the prevalence of Aeromonas species. The physicochemical parameters of water samples obtained from 36 farms, which included earthen ponds, plastic tanks, and concrete tanks were analysed. The isolated Aeromonas species were further characterised biochemically and molecularly through the 16s rRNA polymerase chain reaction. The monthly count of the presumptive Aeromonas species varied from the different culture facilities and ranged between the least value of 0.2 ± 0.1x101 observed in plastic tanks and the highest value of 7.2 ± 0.1x105 CFU per 100 ml in earthen ponds and was significantly different at P < 0.05. There were variations in each of the assessed physicochemical parameters of the water from the fish farms. Except for ammonia, nitrite, and biochemical oxygen demand in concrete ponds and plastic tanks, all the parameters exhibited a positive correlation with each other. The relationship between the parameters and Aeromonas species across the various culture facilities showed positive correlations with pH, dissolved oxygen, nitrite, and biochemical oxygen demand, conversely, temperature, nitrate, carbon dioxide, chemical oxygen demand, and ammonia showed a negative association that influenced the prevalence of Aeromonas species. Monitoring water quality parameters plays an important role in minimizing the incidence of disease, and sustaining the growth and survival of fish in fish farms.