We got two 8 week old kittens last week. They've been on pets at home wet food (the breeder gave it to us) and I wanted to change to something better quality and that we can buy locally. Yesterday lunch time I gave them one chunk each of the new food alongside their pets at home food. In the evening the girl kitten had diarrhoea (I heard her doing it from the next room!) Anyway she's seemed fine since- eating, drinking and playing normally. 24hrs later and I hear the sound again! This time it's a lot more formed although still not solid- I could pick it up from the tray with a nappy sack whereas yesterday I just binned the lot and washed the tray out. Our boy has had normal poos the whole time. I obviously haven't given them any more of the new food.
Do I need to worry or just wait and see if it happens again? Is it definitely down to the change in food? Should I wait until they're older to change over? I'm shocked that she reacted to such a tiny amount to be honest!