很多同学家里都有生态鱼缸,可它们一般名不副实,既需要充氧,又要经常换水,还得定期过滤垃圾。那么,什么样的鱼缸才算是真正的生态鱼缸呢?我们来做一组对比实验。材料和工具三种颜色的塑料盆各一个(下面分别称甲盆、乙盆、丙盆)、锦鲤鱼十二条、水草适量、含池塘底部黑色淤泥的池塘水一瓶。实验过程1.在三个盆里分别装半盆清水;把水草平均分成两份,分别放进甲盆和乙盆;把鱼大小 Many students have ecological fish tank at home, but they are generally unworthy of the name, both need oxygenation, but also often change the water, have to regularly filter garbage. So, what kind of aquarium can be regarded as a real ecological fish tank? Let's do a comparative experiment. Materials and tools Three plastic pots each one (hereinafter referred to as a basin, a basin, a basin), koi carp 12, amount of plants, a pond with a pond of black mud at the bottom of the pond. Experimental process 1. The three basins were fitted with half basin of water; the aquatic plants divided into two equally divided into a basin and a basin; the size of the fish