My two boys came to me on Felix pouches and Purina One dry. Boris was fine on them, and Purina Optistart I bought my mistake. Also, okay with some free Royal Canin pouches and dry. However, tried him on Sainsburys grain free, Harringtons dry and kitten milk all of which have caused soft very smelly poos/diarrhea. These are all kitten products and introduced slowly over three days. He's nearly eight months now.
For now he's back on Felix pouches and Purina dry which has settled his stomach.
Longterm I'd like to give them something better than these products but affordable. Also, something that's available locally as well as online as I ordered some Applaws dry but the online supplier didn't let me know if was out of stock so didn't arrive with my order.
Any suggestions. They're on approx 80% wet and 20% dry which is what I'd like to keep them on.