AQUARIUM FISH GROWTH SYSTEM

PROBLEM TO BE SOLVED: To provide an aquarium fish growth system for effectively using ultrafine bubbles for aquarium fish growth.SOLUTION: An aquarium fish growth system includes: a growth water tank 1 for accumulating growth water for aquarium fish growth; a filter tank 2 filter treating growth water discharged from the growth water tank 1, and accumulating the growth water after filter treatment; a first circulation flow passage 4 having a first circulation pump 4a for returning the growth water after filter treatment to the growth water tank 1; a second circulation flow passage 5 having a second circulation pump 5a for returning the growth water after filter treatment to the filter tank 2 again; and a gas and liquid mixing device 6 for bringing oxygen gas into nano-level bubbles and mixing with the growth water, provided at a downstream side of the second circulation pump 5a of the second circulation flow passage 5.SELECTED DRAWING: Figure 1 【課題】ウルトラファインバブルを観賞魚の育成に有効活用できるようにするための観賞魚育成システムを提供する。【解決手段】観賞魚を育成するための育成水を貯留する育成水槽１と、この育成水槽１から排出される育成水を濾過処理して濾過処理後の育成水を貯留する濾過槽２と、濾過処理後の育成水を育成水槽１に戻すための第１循環ポンプ４ａを備える第１循環流路４と、濾過処理後の育成水を再び濾過槽２に戻すための第２循環ポンプ５ａを備える第２循環流路５とを設けるとともに、第２循環流路５の第２循環ポンプ５ａの下流側に、酸素ガスをナノレベルの気泡となして育成水に混合させるための気液混合装置６を設けた。【選択図】図１