If it is low, it still would be a good idea to treat it but Antibiotics isnt necassary to do so....
When I do fecals at my exotic vet I bring them in labeled bags... in bulk.
To treat any caught signs of parasites, that are not Heavy signs (like yours), I use Parazap.
www.Parazap.com sells it. Read about it on the site. Its an all natural way to rid parasites from your beardie, cat, dog, bird, etc. ALL ANIMALS can use it! It can even be used as a preventative 5-10 days each month to assure you that your pet wont even develop parasites.
Try Parazap Out. It can only help!
Best of Luck!
www.AtlantaBeardedDragons.com