i have only seen two, including mine...i just saw the second one last week..it was probably 7-8 inches..it was huge!!..they had it in a 15-20g tank...they also had a powder blue that was in the same size tank..it was swimming from one side of the tank to the other as fast as it could...i felt sorry for the guy!! i probably would have made a stupid impulse buy if he had been for sale...it was pretty sad looking...for some reason, he wasn't for sale..i think they were holding it for someone..it wasn't because of poor health...this store will sell you a fish floating on its side...i never shop there..i stop in and see the fish..they carry some of the harder to find and more exotic looking fish!