The title pretty much says it all - I have two cats, one - named Mr. Chubbykins, aka Chubs - is pretty fat (like, feline body score of 7 on this chart: http://www.purina.com/cat/weight-control/bodycondition.aspx) and the other - named Cookie - is skinny (feline body score of 3 or 4 on the same chart). They both eat the same food - free choice Authority hairball and weight control. The difference, honestly, is Cookie runs around all day while Chubs sits in my window, and Cookie doesn’t eat as often or as much as Chubs either. I’m working on a cat tree and some cat grass or catnip (Chubs loves catnip, and gets hyper from it).
Anyone have any ideas to get Cookie’s weight up or Chubs’ down other than more toys for Chubs and switching to normal food once he’s no longer in danger of becoming even more ironically-named?