Credit: Rayner Pitt (United Kingdom) The three photos a, b and c show the followings: a) small white ‘hapa’ bag (0.45mm mesh) for first-nursery rearing of small juveniles directly from hatchery b) large white bag-net (1.0mm mesh) for second nursery of juveniles (after first nursery in a hapa or outdoor tank) c) pen (fenced area) …