[chesca_27]

Looks normal to me. Lighter coloured animals (this applies to my guinea pig, Toffee) generally will have pink ears or noses where they would otherwise have a light pigmented fur, like Sweep.

I hope I worded that ok as it is a bit confusing to explain.

Unless his ears looks particularly red, sore or inflamed, there shouldn't be anything to worry about.

If you're still unsure, go back and look at some old photos of him, and you might realise he's had it all along. If not, it could be a concern or just simply a colour change.

I'll attach a photo of Jasper so you can see how his ears are quite pink and a photo of my guinea pig, Toffee, who showcases it better.