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1、使用养鱼缸的目的是养鱼,为什么要在缸中种植水藻等植物呢?这要从鱼的新陈代谢的类型谈起:一方面它的同化作用的类型是异养型,要以水藻等植物为食物,在获得食物的同时获得能量供给它正常的生命活动。另一方面,它的异化作用方式是需氧型,要靠水藻等绿色植物的光合作用为它提供氧气。2、为什么要不断地从外向养鱼缸中补充氧气呢?因为一般养鱼缸中鱼的密度比较大,且鱼的运动量也不小,将导致水中溶解氧比较少,另外水中的植物也要不断进行呼吸作用,所以水中的生物需要消耗大量氧气。
1. The purpose of using aquariums is to raise fish. Why should plants such as algae be planted in the aquarium? This starts with the metabolic type of fish: on the one hand, its type of assimilation is heterotrophic, with algae, etc. Plants are food, and when they get food they receive energy to supply their normal life activities. On the other hand, its dissociation method is aerobic, relying on the photosynthesis of algae and other green plants to provide oxygen. 2. Why should we constantly supplement oxygen from the external aquarium? Because the density of the fish in the aquarium is relatively large, and the amount of fish is not small, it will lead to less dissolved oxygen in the water, and the plants in the water should continue to perform. Breathing, so creatures in the water need to consume a lot of oxygen.