Rehomed a 4 year old male stray from the RSPCA back in September. He has always had a fine appetite. He used to eat Whiskas cat food. I then had him eating Aldi cat food. He then refused to eat Aldi cat food and would only eat Whiskas.
I have been giving him Whiskas pouches ever since. However, today he won't even eat those. I went and bought some Felix pouches and he won't eat these either.
I tested him with a few Dreamies and he will eat these with gusto, so it's not like he can't chew or swallow.
What do you think is happening and what should I do next?