Hi Karen
My boy has just turned 12 months and he is a right little so and so at the moment grabbing anything he can manage to get in his mouth!!
We had a brown before and we did have a few problems with her coat but they cleared up as she got older. My blacks well their coats were as you said your Ciara'a coat is..never had any problems at all. The vet has said it is probably partly to do with his age and it should clear up as he matures.
I really hope this food helps as we want to show him and at the moment I don't feel his coat is really up to scratch.