The frequency(ies) mentioned for bacterial fin rot is listed below,
Pseudomonas Aeruginosa 3965 Hz
Pseudomonas Aeruginosa 2959-4 Hz
Pseudomonas Aeruginosa 1132 Hz
Pseudomonas Aeruginosa 174!!! Hz
174 Hz is the most effective frequency. The rest are high frequencies that are expected to be more penetrating in water. Play them with headphones in a waterproof bag immersed, or through speakers pressed against the wall of the aquarium tank; for 2 Hours or more, as long the rot is visible.
Good luck.
