We like to support other local business here, so here is a mention of a local pet food supplier.

Phil Lepp runs Oscar Pet Food Wokingham. They deliver Oscar Pet Food straight to your door, FOR FREE so that saves you a trip out!

They do a variety of food, and cover a variety of pets including dogs, cats, rabbits, birds, fish and more.

There is even, currently,  a competition to win free food for a year!

Good luck!