????????? ?? ??????: ????????? ????? ?? ?????? ????? ?? ??? ???? ????????? ?? ????? ?? ???? ???, ????? ????????? ?? ?????? ?????? ?? ??? ???? ????? ?? ???? ???In a very biofloc system, the free matrix of mucus, which is secreted by different microbes, assists in linking each floc collectively, which happens to be sure by electrostatic attraction or