This is a sequel to of fears and tears and smiles and love

While trying to prove he is the greatest at digging, Krader accidently discovers Equestria, and brings all the Mixels over, where they are soon warmly welcomed by the mane six and their children. After taking a tour of Ponyville, the Mixels soon debate over whether they should go back to their home, or stay and live life, Nixel free. Takes place in Ultimate Crossoververse

If you haven't watched Mixels, the click here to view a more funnier episode, to get an idea of what the Mixels are. And only nine of the tribes are official, and the OC Mixels aren't mine, they all belong to their owners. Here's a link to one of the OC tribes, the fighters,, and here are the Electoons, another OC tribe, which once again, i do not own.