There is no specific Rife frequency for Columnaris, cotton mouth disease in fish but there is a set of frequencies for gram negative bacteria,
Bacterial Infections, Gram (-) 901-03 Hz
Bacterial Infections, Gram (-) 795-52 Hz
Bacterial Infections, Gram (-) 587-5 Hz
Bacterial Infections, Gram (-) 435-37 Hz
Bacterial Infections, Gram (-) 307-25 Hz
Bacterial Infections, Gram (-) 275-29 Hz
Bacterial Infections, Gram (-) 183-85 Hz
Five of these frequencies (795.52 Hz, 587.5 Hz, 435.37 Hz, 307.25 Hz, 275.29 Hz) are also applicable to gram positive bacteria.
Have a nice day.
Note:
There is one other gram positive frequency,
Bacterial Infections, Gram (+) 163 Hz
