I'm new to long furred cats. I just adopted Zelda on Saturday. Today I noticed the fur on the base of her tail was greasy, and kind of stuck together, almost matted. I gently combed it out and there was dandruff mixed in. I got the fur declumped but it is still greasy. Her neck seems a little greasy too, but not as much buildup as her tail. Could this be related to diet? She was on a Eagle Pack (lots of corn), and I've gotten her switched over to California Natural. Are there any specific grooming tools I should get for her? She has a vet appointment on Monday, so I will also discuss this with the vet.