Three to four meters below them extend large nets, full of lively grouper, red porgy, and black porgy. Between the tanks hang strings and strings of oyster shells, their surfaces crowded by oyster larva. The larva need a firm place on which to grow and flow with the current until they find a suitable location.
玄機在海面下：原來箱子的另三面是個三、四公尺見方的大網，裡面石斑、黑鯛、嘉臘活蹦鮮跳；浮桶下垂掛著成千串的牡蠣殼，許多牡蠣已自動送上門，挑個中意的殼「窩居」起來。