What kind of large ornamental fish is good to raise at home in the north?

-these kinds are easy to raise and easy to succeed. I once raised fish in an outdoor pool for three years and gave birth to countless fish descendants. (Red crucian carp and goldfish will cross, and black crucian carp may appear in offspring. Courtyard farming can breed ... success! )。

The experience is: the pool should be large, and the water depth is just 0.6 ~1.0m; Water plants must be released, even the bait does not have to be released; Dredging must be done regularly (equipment should be ready), and silt should be removed in time before freezing; Choose plastic film covering or indoor movement in winter.

Seeing your supplementary information, the depth of the pool is not very large, and temperature difference control is needed: water lilies are better for shading! In the hot season, add umbrellas, put tables, and put tea ... * * *. There are aquatic plants that can be used as fish nests, allowing them to reproduce themselves without intervention.