Hi, just found this site and it seems very helpful. I have 5 cats, they range in age from 14 weeks to 11 years, I just lost one recently to heart failure, he was the oldest, around 13 or so. I have another one 3 years old with cardiomyopathy, so it seems I'm always at the vet. I think this will be a great place to get advice from other cat owners.