probably better if it hadnt eaten wild flies, but i wouldnt panic just yet, chams eat parasites in the wild all of the time, many chams both wild & captive, live with parasites for extended periods of time with no ill effects, i dont think its so much of an issue as to weather it ate parasites but, whether or not those parasites will manifest themselves in such levels as to be a burden to the animal, and that might take some time to ascertain. im not certain you could even determine if there had been an infestation from a single feeding, even if you did a fecal float and managed to find some signs of parasites, that doesnt neccessarliy prove thet they have taken hold ?, i suppose he could just pooh them all through without them even hatching ?. im not really familiar enough with the parasite life cycles to give a definitive answer. but personally i would wait at least a month before spending money on fecal exams. and then theres the issue of, for the cost of a vet visit plus fecal exam, you could buy your own microsope and with a little study you could at least look for something suspicious , although if you find it, then you are faced with a vet visit anyway, im sure there are others on the forum who are actually better versed on the parasite issue than i, i would imagine at some point dw will chime in , and i would give a lot of weight to his opinion , him being one of cf's more experienced microscopy people and all. / edit/ jonas makes a good point , and i recently stated as much in another post, nothing against any sponser of cf or any supplier specifically , but i think if we saw some of the conditions where SOME of our other feeders come from, we would be equally worried as well .anyway just my 2c worth