Hi. I am fairly new to chickens and have a mixed flock of six, BSL, BR, GC and RIR. My girls are in an enclosed run, about 80 square feet. I have not treated for Coccidiosis, but and consistently reading that it is found in ALL soil. I was wondering if everyone else does preventative treatment or do you wait for a problem? Also, can you find the necessary treatments at Tracotr Supply? My local vets do not seem to treat chickens. Thanks in advance for the imput.