Hello! I rescued a guinea pig a few months ago, he was about 3.5 years old and he had been eating the Menu brand guinea pig food for the full 3.5 years. It’s the bad food with a bunch of stuff mixed in. When I got him I had slowly been switching him over to the Oxbow adult food. It was very slow going and he was very stubborn about it. I tried different varieties of the oxbow food and a few different brands of pellets but he didn’t like any of them. I had also tried scatter feeding, snuffle mats and mixing it in with his hay none of which he took to. And then unfortunately he ended up being hospitalized with a double inner ear infection and he lost quite a bit of weight. At first I was continuing to give him the oxbow food but he was fully refusing to eat it and was continuing to lose weight. The second I started adding back in the Menu brand food that he was used to he started eating again and is now gaining weight back. I will be talking to his vet about it at a follow up appointment (he is on lifelong antibiotics, is being closely monitored by our vet and is doing much much better). But I guess my questions are 1. My main priority short term felt like it should be to get him to put some weight on. But am I doing him more harm than good giving him this food? 2. Has anyone had a guinea pig that just wouldn’t switch foods after eating one type for so long? 3. Any tips or advice on getting him to switch? Thank you guys for any help!