no, i guess you read that wrong.
i use 0.1 ml per 2.2 pounds of body weight of the animal. so quigley (31 lbs divided by 2.2 = 14.09, times 0.1 = 1.40) gets 1.4 ml.
if i went by the advantage packaging recommendations, he would fall into the category of 21-55 lbs, one tube of which contains 2.5 ml.
my two biggest cats weigh 17.5 and 14 lbs. one tube of advantage for dogs over 55 lbs (4 ml) is enough to treat all my animals.