I got my guinea pigs from Petsmart on New Year’s eve (about 2 weeks ago) and they’ve been in good health, very active, etc. But today I noticed that my black guinea pig had some white above his eye that I’ve never seen before. I thought it was just a speck and that it was nothing that couldn’t just be wiped off but it wouldn’t come off even though I carefully brushed him and wiped him. I’m really concerned because i’ve only had these guinea pigs for less than a month and I’m 17 and my mom doesn’t want me to spend money on taking them to a vet. Does anybody know based on the attached picture if it’s mites?