i may get flamed but if it were me and the snakes ate fine look fine and feces is a solid consistancy i would not test them. reason being is they may very well carry a protazoa load which is normal its when its over loaded its a problem. I have dewormed all my snakes at once in the past with pancur. and i had one snake with rank smelling feces,runny and i used proper dose of metrondiazonole/flagyl and cleared it up.

i have been screwed around by many vets in the past and find at times not always but at times they become test crazy. flagyl can be bought from aquarium stores. please research and make the appropriate decision. my comment is just food for thought. i wouldnt use this approach with a suspected RI or other health issues but parasites i would