池昭公鱼吃尽污染源:池昭公鱼原产日本,体长只有15厘米左右,专吃水库、水塘、水池中肉眼看不到的微生物、藻类及浮游生物。由于它能吃污染源,所以被誉为水库清洁工。犹美鱼吸囊卷除杂质:生长于非洲莫桑比克的一种名叫犹美的无鳍鱼,其胸部有一吸囊,囊的四周有圈卷毛似的囊须,能把水中的杂质和细尘卷进去,搓成团状物后抛出,沉入水底使水净化。 Chi Zhaogong fish exhausted pollution source: Chi Zhaogong fish native to Japan, body length is only about 15 cm, specializing in eating reservoirs, reservoirs, pools invisible to the micro-organisms, algae and plankton. Because it can eat pollution sources, it is known as a reservoir cleaner. Jumbo sucker removes impurities: A fish called Jumi, which grows in Mozambique in Africa, has a suction bag on its chest. It has a curling-like beard surrounding the bag. It can remove impurities and fine dust from the water. Rolled in, thrown into a mass, and sank to the bottom of the water to purify it.