Cause for Concern?

Sally's weight is good but Scarlett's weight has been droping a bit. I guess I should give a little history and background on them they are sisters to my Clint and belong to my nephew he and his mom don't care for them very well and so it has fallen on to me to give them proper care I don't get time to get over there to give them hay all the time and they won't keep any in the house it's tuff enough keeping some in the cages for the girls my nephew has some allergy problems with the hay and my sister won't hardly have anything to do with there care and can't wait until they die! They are both over 4 years old and in good health I feed them oxbow cavy cusine and what hay and veggies I can. Well that's about it thanks for any input talk to you all later.

Sally & Scarlett Weight Chart&nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp
&nbsp &nbsp &nbsp &nbsp Weight in pounds&nbsp &nbsp &nbsp &nbsp
Date&nbsp &nbsp &nbsp &nbsp Sally&nbsp &nbsp &nbsp &nbsp Scarlett
7/2/02&nbsp &nbsp &nbsp &nbsp 2.2&nbsp &nbsp &nbsp &nbsp 1.12
7/29/02&nbsp &nbsp &nbsp &nbsp 2&nbsp &nbsp &nbsp &nbsp 2
8/4/02&nbsp &nbsp &nbsp &nbsp 2.2&nbsp &nbsp &nbsp &nbsp 2
8/11/02&nbsp &nbsp &nbsp &nbsp 2.2&nbsp &nbsp &nbsp &nbsp 2
9/28/02&nbsp &nbsp &nbsp &nbsp 2.2&nbsp &nbsp &nbsp &nbsp 1.15
10/20/02&nbsp &nbsp &nbsp &nbsp 2.2&nbsp &nbsp &nbsp &nbsp 1.13