Several species of Pseudomonas and Aeromonas are pathogenic and reported to cause various kinds of skin ulcerations including the most dreaded Epizootic ulcerative syndrome (EUS), albinoderma, erythroderma, tail and fin rot and hemorrhagic septicemia (Das, 2004). In the present study, Pseudomonas loads in Pond A and B ranged from 1.00×105 to 2.96×105 cfu/ml and 1.02×105 to 2.90×105 cfu/ml and in control Pond from 2.36×105 to 7.25×105 cfu/ml (Figure 2d).