question about ick

[aussiecoral]

ich is always present in the tank. At first i didn't believe that theory but when my fishes have ich, i decided putting in the ich medication, the medication kill all the benificial bacteria and wipe out the entire tank. Using the medication for one week and 2 weeks leaving the tank alone let it cycle again. After cycle period is done, i introduce new fish in the tank and boom ich starts again, so i believe ich is always present in the tank.