>>26449914>>26449953Naw it's not a koi, it's probably meant to be one of the less gold-lookinf species of goldfish, keeping in line with Goldeen.
Either way I totally disagree about the patterns not intentionally looking like hair. It's definitely intended to, and they even gave it marks under its eyes like it hasn't been getting its beauty sleep. For whatever reason, they intentionally tried to make this pokémon ugly. I'm sure of it.