Rosie is a biscuit girl ... she will eat a little bit of canned cat food, however 99% is biscuits. She loves her water and we have plenty of containers around for her as she prefers the container to be big. Hence we go so far as having a BUCKET ... full to the top so she can reach ... sitting in the lounge, ice cream containers in both bathrooms and a large dish outside. Every time I see 'milk' I think ... not cows milk ... no you would not give him that, there is special milk for cats you can buy. So don't worry, as long as he has fluid, biscuits will be fine. Rosie loves Whiskas ... the little pillows ... we have tried her on others, but these are what she loves. Thank goodness they have many flavours.