????????? ?? ????: ?? ?? ???? ?????? ??? ?? ??????? ?? ???? ?? ???????? ?? ??????? ???? ??? ??? ???? ????Prior to adding h2o for the tank, it ought to be sufficiently cleaned. Use an answer of potassium permanganate, i.e., KMNO4 (antifungal agent), to scrub the tank and leave it for twenty-four several hours to wash. This Alternative assists destro