pet accessories and food shops in Nairobi?

Hi you all (especially pet owners!)
I am moving to Nairobi in a couple of months and I am bringing my cat with me. Do we find easily acessories and quolity pet food in Nairobi? In supermarkets or specific shops? Any suggestions? Thanks for your help, I will be visiting Nairobi next week for housing and I would like to have a look at some of the shops.
Thanks a lot!
Sonia