????????? ?? ??????: ????????? ????? ?? ?????? ????? ?? ??? ???? ????????? ?? ????? ?? ???? ???, ????? ????????? ?? ?????? ?????? ?? ??? ???? ????? ?? ???? ???Just before adding water to your tank, it ought to be adequately cleaned. Use an answer of potassium permanganate, i.e., KMNO4 (antifungal agent), to scrub the tank and depart it for twenty-f