That was my thread I posted there!
That is just one website, there are many more with tons of remarkable pics and info. Because they are Japanese based, translations are really difficult to decifer and navigate. The prices seem pretty good but the bigger piranhas are exponentially more expensive compared to what we would pay here. Nevertheless, It is well know in hobbyist circles that Japan for the most part , gets first dibs on most anything coming out of the South America before the wholesalers think about the rest of world and piranhas are no exception.