I've just brought a one year old rag doll, she was on asda own brand dry cat food so I thought I'd 'upgrade' her to whiskers... I've just been doing research and found out that's probably not best for her? I really don't want to do wet food so I'm looking for opinions on very good but affordable cat food please? (High neat content) And can I mix it in with my whiskers one? Thank you for any advice.