GET THEM ON WET FOOD AND DRY COMBO . The food should be Id science diet prescription or rd prescription. Ponazuril will kick it one dose . If you have gardia then the poo is most time like water and a greenish color . Pumpkin in the food helps and the probotic you will need is Vetri-Science Vetri-Mega Probiotic buy it on entirely pets for half of what amazon sells it for