So right there the one used straw once for the bedding and my ferret court and ferrets ended up riddled with ticks and with 2 large sheds and a aviary it was a nightmare to get rid of them. Never used straw again. Use dust free shavings for the floor and shredded paper for the bed in the winter. We keep between 12 & 15 ferrets all the time and never had a single problem since. Each to there own