Well I had a marina breeder box, chucked them in that, floating in the top, and 3 managed to get down the gap between the trap and the main bottom of the box.. So ended up food, stupid thing, what's the point in a breeder box, that lets tiny fish escape?? Put the surviving one in a separate tank now, about 20litre, with air stone, and a fake plant, problem is, that one has no heater or filter... I used water from the main tank.. I just don't know what I'm going to do now... :/ stupid marina. Reeder box :'(