Crab rearing cage adapted for catering individual crab that could be interconnected for catering plurality of cage installation. It comprises a cage body having lockable cover member disposed on upper portion of said cage body and a lockable and openable door disposed on the front portion of said cage body and hingedly connected on the front portion of said cover member. Installation of water supply line, drain line and overflow line could be done in the interconnected cages ensuring continuous water supply at the level suitable to the crab.
