Do black spots mean a marble?
You know how on some (most in a petstore) yellow or orange bettas have some of those black spots on their bodies? Well does that mean that they are going to change colors? Or is it just their body color? Im pretty sure they aren't ammomia burns...
5G - 1 betta: orange dalmatian VT male "Ty"
29G - 1 orange fantail goldfish "Goldeen"