I would not put an auratus with them they will shred the fronts. Non agressive fish are best as fronts are not mean fish to other specieses also slower fish that won;t nip their fins off. We fed ours some guppies the other night and at first they ate them now the guppies are swimming with them. What kind of fronts were you looking to get because they are not all equal price. The blue ziares are the mast expensive and least common. I think the mipibwe are next then burundis and the 7 stripe kigomas. Just be carefull and check what kind you are getting and ask someone in your area who knows them what theu should cost.