did it look like this?:


that is a tapeworm, expelled by one of my snakes. luckily, they are not easily spread from snake to snake unless the snakes are kept in the same enclosure (they are transferred in via eggs in the feces) or you share prey items (put a live rodent in with one snake, the rat comes in contact with the feces, is not eaten and you give the rat to another snake).

i wouldn't necessarily recommend treating all your snakes as a preventative measure. there is no reason to treat a snake for something it doesn't have. if you suspect they might have something or want to know for peace of mind, just get fecals done on all of them. $35 per fecal is high--perhaps your vet would give you a discount on a group of fecals?