the Koi Scarves (how do i obtain one)

[G_Gundam86]

ok, ive been wanting to get one of the koi scarves and ive been fishing for the golden koi, do i have to get a certian amount, and what the amount is

[Leandra Solus]

Perhaps you're referring to the Koi capes but regardless, if it's made from fishing then the items that you're looking for and what's needed to exchange for them will be listed in Gaidin's Fishing Guide.