We have 4 strictly indoor cats, the youngest being 4 months and the oldest is 11 months. We have always had them on just james wellbeloved kitten biscuits. They have no problems eating it and really love it! But over the past 3/4 days there poops have become very very smelly and quite watery. Only 1 of them is having normal movements. And as you can imagine its not very nice. They don't eat anything other than the biscuits, so what can be making them like this? They have never had problems before. The only thing I can think of is we bought a new sack of food?! But that seems abit far fetched!

The older 3 are neutered, they are all up to date on flea/worm treatments (frontline and panacur paste).