im in the process of cycling a rio 180 . it had about a weeks cycling with no mature media , and has been cycling with mature media now for about 2 weeks . for about a week now ive been dosing ammonia to 3ppm , then the next day getting results of ammonia 0ppm , nitrite 1 ppm . every day because ammonia is 0 im re dosing to 3 ppm . is this the right thing to do ?