从河里采到水蚤后,应放在较大的玻璃缸里。缸里应放一些从河里带回的水和绿藻,如水绵等,以便增加水中的氧气,还要放一些由蚯蚓、蝗虫或其他动物制成的碎肉,作为水蚤的饵料。在水蚤数量增加时,要及时采收,并晒干。到了秋末和冬季,水蚤的繁殖力大为减弱。当冬季,在水缸中看不见水蚤活动时,千万不要把缸里的水倒掉,因为这时它们都潜伏在绿藻丛中。我们可以把水缸放在向阳房间或暧气片附近。到了春季,室内温度升高时,水 After collecting daffodils from the river, they should be placed in larger glass tanks. The tank should contain some water and green algae brought back from the river, such as sponges, to increase the oxygen in the water and to put some ground meat made from earthworms, locusts or other animals as bait for daphnia. Daphnia in the increase in the number of timely harvest, and dried. By late autumn and winter, the fertility of daphnids has greatly diminished. In winter, when daffodil activity can not be seen in the aquarium, do not throw the water out of the aquarium as they all lurk in the green algae. We can put the water tank in the sunny room or near the heating plate. In spring, indoor temperature rises when the water