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Let's talk about what kind of goldfish is easy to raise first.

Grass seed fish, similar to crucian carp, is the oldest goldfish. Its body is spindle-shaped, and its dorsal fin and pectoral fin are triangular, long and sharp. Its main varieties are:

(1) The caudal fin of crucian carp is short, simple and concave; The whole body is orange-red, which is the oldest goldfish species.

(2) Grass goldfish originated directly from golden crucian carp. Tail fin is long, Shuang Ye or trifoliate, undivided, and it is dovetail or water chestnut (that is, three tails); The whole body is red.