Ok thanks. Oh and by the way I did loose one oto like a month ago but I only had one angelfish and he was like quarter sized and he was way to small to eat him. And plus I never found any remains of him? So I don't know what happened to him... But thanks for the help and so the main thing is that they should be fine if the grow up together and the cardinals and otos are full size right? And angelfishusa has good non sick fish and angelsplus does to? Thanks