The Tosakin has a joined caudal fin (tail) and to see it try to swim is quite pityful, I have Bubble eyes that swim more gracefully even though the bubbles are the size of the fishes body. If this fish was bred from a pair of veiltails or fantails it would be culled at around three weeks of age without exception, but because a japanese person decided that this was a new breed and as such called it a Tosakin like-minded people purchased it and now want to bring out a standard for the fish. As far as I know only one person in the country has bred these fish and they are a rarity in this country.

All fancy Goldfish are mutants of some form or another, the question is where do you draw the line?