PROBLEM TO BE SOLVED: To provide a method and apparatus for rearing larval fish having properties gathering in an aquarium bottom by light in which a lot of larval fish can be efficiently reared at a high survival rate.SOLUTION: A rearing method is configured by: alternately inclining an aquarium having a water supply pipe and a drain pipe at predetermined intervals in two directions； making larval fish gather at the deepest part of the sloping half bottom surface inclined downward； and cleaning the half bottom surface inclined upward of the other end and a sidewall surface. Also, a rearing device includes the aquarium integrated by connecting two sub-aquariums, and means for inclining the aquarium. The inclining means is the means capable of inclining the aquarium until all of rearing water of one sub-aquarium is transferred to the other sub-aquarium.【課題】多量の仔魚を高い生残率で効率的に飼育することができる光によって水槽底部に集まる性質を持つ仔魚の飼育方法及び装置を提供すること【解決手段】給水管と排水管を有する水槽を二方向に交互に所定間隔で傾斜させて、仔魚を下方に傾斜した半底面の最深部に蝟集させ、他端の上方に傾斜した半底面及び側壁面を清掃する飼育方法、及び２つの副水槽を接続して一体とした水槽と該水槽を傾斜させる手段を備え、該傾斜させる手段が、一方の副水槽の飼育水の全てが他の副水槽に移送されるまで前記水槽を傾斜させることができる手段である仔魚の飼育装置。【選択図】図３
