??????? ?? ????????: ?????? ?? ?????? ???? ????? ???? ??, ?????? ???? ?? ???????? ?? ??? ??? ???? ???Right before including h2o for the tank, it ought to be adequately cleaned. Use an answer of potassium permanganate, i.e., KMNO4 (antifungal agent), to scrub the tank and go away it for twenty-four hrs to wash. This Alternative assists kill all the