Hello! There are few places to breed bullfrogs in the north, and the supply of breeding and fry is mostly in the south. You can check online and introduce several manufacturers that produce bullfrogs. Shantou He Hui Aquatic Products Co., Ltd. Tel:13794130030; Business department of frog products in Chengxiangyuan, Chenghai District, Shantou City Tel:13825815228; Suiping county Yongsheng Insect Industry Co., Ltd. Tel: 0369-474 1202.
There are many crayfish fry manufacturers, mostly in Anhui, Jiangsu, Hunan, Hubei, Jiangxi and other places. You can ask a reputable manufacturer online.