1, zebrafish: it is located in streams in Bangladesh and Nepal, and the suitable water temperature is 20 degrees Celsius, but it can still survive tenaciously at 10 degrees Celsius;

2, moonlight fish: gorgeous body color, gentle temperament, can be mixed with other tropical fish;

3, fork-tailed betta: the tail fin is fork-shaped, the body color is gorgeous, and it can still survive in an environment close to zero degrees Celsius;

4. Snakehead: There are golden yellow or silver blue vertical stripes on its side, which has weak reproductive ability and the habit of swallowing fish eggs;

5, guppies: gentle, lively and active, can be mixed with moderate small and medium-sized fish;

6, koi fish: gentle temperament, like to travel in groups, easy to raise, and strong adaptability to water temperature;

7. golden