Aeromonas and Pseudomonas infections have been associated with tail and fin rot infections. These infections are Proteon Pharmaceuticals S.A. has created a natural feed additive, BAFADOR®. The product helps to eliminate infections caused by Aeromonas sp. and Pseudomonas sp. which can contaminate farmed fish. The active bacteriophages only against target selected serotypes of pathogenic Aeromonas sp. and Pseudomonas sp.