I have to second kevins suggestion of checking out our sister site www.felineadvice.com
we have a vet on staff over there for accurate assistance.
With that said....
We went on a trip and stayed at a place that was fighting a flea infestation. After a few weeks of being home after that trip our house was OVERRUN with these **** things. It was so bad you would litrally see them jumping all over your legs and arms if you went into the basement living room.
What we did to end this was I got some flea powder from the store and sprinkled it all over the carpet and the furnature in the basement. Used a broom to sweep it into the carpet and let it sit for about an hour. Then I vaclumed it up. I did this twice and also go some 'advantage'
from the vet. We are into our 3ed treatment with advantage and I have not seen a flea for 2 months.
I have two tanks in the basment and neither had any negitive effects from the treatment with flea powder but there was a small amount of powder residue over just about evertyhing including the caonpy.