Hello! So recently I decided to buy a 10 gallon tank as a small addition to my room, and I have already set it up with a few live plants. But as a favor to one of my friends I agreed to take 3 golden white cloud minnows and a peppered cory cat fish from their overstocked tank. They are pretty peaceful fish by nature, but I am unsure on what to put in to such a small tank. Originally, it was going to be a betta tank, but now I am wondering if it will get violent with the other fish. I want something a little exotic or colorful, to match my 20 gallon tank, any recommendations?