9) White Cloud White CloudA White Cloud Mountain Minnow is another small fish that tolerates cold temperatures.
In fact, some people keep these in outdoor ponds over the summer.
They can tolerate temperatures as low as 60 degrees Fahrenheit.
They are a hardy fish that tends to live in the middle and top areas of the tank. They prefer to live in a group. Purchasing 6 or so will help promote good health and color in these fish.