DOES my iguana have mites???

so i was watching my iguana today and i noticed small little bugs waling around on her. there are not a lot only like 3 that i could see but some were red and some were black. i built the cage myself out of 2x4's and chicken wire coated with rubber over the metal. none of the things i put in my cage were from outside and the bedding is just simple news paper. i need help what are they and what can i do to get rid of them?