We have lived here for 14 years and have no indoor pets. We got five chicks in May. We have all hardwood floors, and just a few area rugs. We have all our mattresses sealed in bedbug proof zip cases. We have regular quarterly pest control treatment and have had for the entire 14 years we've lived here. These are not stick tight fleas. They are ordinary jumping fleas, and suddenly they are everywhere in the house. They are jumping on our ankles and biting me and my kids. The only thing that has changed is the 5 chickens we have outside. Today I took all the rugs out on the driveway and sprayed them with Advantage rug and upholstery spray. I also sprayed the upholstered futon that's on our screened in porch with that. I turned on the ceiling fan out there afterwards to ventilate. The rest of the furniture, except for the beds is leather. I can wash all the bedding and steam clean all the wood floors with my shark steam cleaner. (but phew, that's going to be a lot of work!) I keep DE in the coop, and I regularly sprinkle it around the areas of the yard where they hang out during the day. I sprinkle it liberally under the bushes where they hide and dust bathe, so they should be pretty well dusted with it. I also got some indoor house flea foggers to treat the rooms with. But we need to find a time that we'll be gone for a couple of hours before I set those off. but what else can I safely put on the chickens? I've read a number of posts where people were treating their chickens with Advantage. It sounded like they were calculating a dose and splitting up the vials. Do they use Advantage for Dogs or Cats or is it the same chemical? Does it matter? Do I need to weigh each of them first? I bought some Advantage for kittens, but I'm afraid to do it! Also, I haven't actually seen fleas on the chickens, just in my house. I'm just assuming that the chickens have them because I can't figure out why else we have them all of a sudden otherwise. Thanks so much for any help. I've read a lot of old posts before I posted this one. I've been trying to figure this out for several days, I just feel like I'm not getting an absolutely clear answer, one way or the other, and I hated to ask a question that had already been answered. But on the other hand it doesn't sound like regular fleas are a very typical chicken problem. I have tried to be as complete as possible in describing the problem, but ask questions if I've left something out.