So it's ok to use Metro as a preventative treatment, or only when you see white poop and intestinal parasites are probable? I'm going to do a PraziPro treatment in the water next week and another Fenben food soak the week after.

Is metro fed for 3 days exclusively? I know I could feed Metro at the same time as PraziPro in the water, but is that too much at once with the Fenben over 3 weeks?