Aww chick, I'm sorry It's one of the hardest things...losing a beloved pet. But if he was in that much pain then you made the right desicion for him. He would thank you for releasing him from his agony.
He will wait for you patiently at Rainbow …
Dolphins wearing bubblegum pink wigs, doing a water ballet to "I'm Henry the Eigth I am...", with intermittent outbursts from the polarbears wearing kilts, and penguins irish dancing.
TOP THAT
A couple of my dogs are on "Science PLan" due to them having special dietary requirements.
The others are on James Wellbeloved (My ferrets also have that brand of ferret food) I find it very good.