I have managed to trap and euthanize three of my less impressive fish or ones that I have multiples of as to coloring. I think the fish have caught on though and are getting really cagy. Would prefer to get at least three more. I know I have some babies in there that will show up (literally) next spring. One of the black ones is already about 1.5". You almost can't see them although as they mature some take on orange streaks