I have a black and the silver, and they are fun and nice to have but after recently buying the Australian arrow to add to my addition i love their swin pattern in that they don't just swim at the top all the time, they swim at difffernt level of the tank, plus I think after having silv and black for so long, I am looking forward to the differnt body shape of the aust arrow adn teh gold color. As for the Asian, I lived in Japan for three years, they are some beautiful fish, and it would be a drream to have one of each species living in the same tank but thats a dream as I can not afford an asian even if they were for sale in the US..