在幽雅的居室养一缸热带鱼美化居室环境，其效果不亚于增添一帧名画墨宝。】．水质与换水。自来水含有微量的氢气和漂白粉，不利于热带鱼的健康。用自来水饲养热带鱼需经2天曝晒以除去氯气。换水方法有二：一是抽出缸内水量的25巩后加入等量新水。二是全部换水。秋冬季掺水以每 In the elegant room to raise a cylinder of tropical fish beautify the living room environment, the effect of no less than adding a fine painting calligraphy. ]. Water quality and water change. Tap water contains trace amounts of hydrogen and bleach, is not conducive to the health of tropical fish. Tropical fish is raised in tap water to remove chlorine after 2 days of exposure. There are two ways to change the water: one is to extract the amount of water in the cylinder 25 after adding the same amount of new water. Second, all for water. Autumn and winter water to each