【How-to】Can you fish with rosy red minnows

White cloud mountain minnows can live with tropical fish if the tank is kept at 72 degrees Fahrenheit—a higher temperature is too warm for them, and a lower temperature is too cold for warm-water fish. Here is a list of possible tankmates: Danios. Livebearers, such as guppies, platies, mollies, swordtails, etc.