????????? ?? ??????: ????????? ????? ?? ?????? ????? ?? ??? ???? ????????? ?? ????? ?? ???? ???, ????? ????????? ?? ?????? ?????? ?? ??? ???? ????? ?? ???? ???Within a Biofloc system, nutrients and waste developed from nitrogen are recycled. Recycling keeps the drinking water’s nitrogen and carbon dioxide ratio large.BFT introduced aquaculture as