I don't think there are any flea killing pesticides that are safe for reptiles, are there? I think some ppl use Frontline on snakes but dosage not the same?
Frontline is not that effective on fleas, in my experience. My dogs are on Nexguard chewables & haven't seen a flea since...but it's expensive, especially for
that many dogs/cats. Yikes!
To "bomb the house for fleas" I think all the reptiles should be on vacation at another location for a while, for their health & safety.