OH where to go from here....Pretty much everything has been said that needs to be said, only it bits-n-pieces. TRUE: Parasites intention is to NOT KILL THE HOST, what's the point in that b/c host dies=parasite dies. That being said, proper husbandry is the key. Maintaining proper hydration and nutrition is the paramount mission for anybody to acclimate WC uros.
I've noticed that lately some of the dealers have been advertising their gex as "treated for possible parasites", seriously, anybody who's taken a entry level Parasit. class knows that to find a wild animal (older than a day old hatchling) WITHOUT any form of parasites is a truely REMARKABLE find. Panacur is the drug of choice for these "possible infection", and is effective in the treatment of Nematodes (roundworms), however, it is NOT EFFECTIVE IN THE TREATMENT OF COCCIDIA. Coccidia a protozoal parasite that invade the epithelial cells of the intestine. They don't necessarily "feed off their host", they're just free-loading in the cells. Subsequently, these cells are rendered useless for the absorption of nutrients. There are medications that are effective for treatment of coccidia, HOWEVER, these are not as forgiving as Panacur. In many cases the side-effects are more damaging to the gex than the coccidia themselves. Coccidia thrive in stressful situations, i.e., DON"T STRESS THE ANIMALS. I haven't treated one of my gex for coccidia and they're doing fine, they also live in my basement and don't see me (or any other human) for more than ten minutes a day (on average).
In closing (hehehe), parasites are just part of the package. Yes, they're an undesirable component, but they don't care. The only times that parasites become a worry are during high stress (shipping, handling, depletion of nutrients), and if they are becoming secondarily infected due to poor husbandry practices (not removing the poo). Sorry for the length...
Sean