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鱼塘中水的酸碱度(即PH值),对鱼类的生活和生长有着密切的关系。据科学测定,当鱼塘中的酸碱度适当,PH值为7～7.85时,鱼类的食欲增加,生长良好,长膘快,饲料系数低。但是,当鱼塘中的水的PH值在6以下,呈酸性水体;或PH值超过10、水体偏碱时,鱼类的生活和生长就会受到严重影响,甚至会发生死亡。因此,必须对鱼塘中的酸性或碱性水体,采取有效方法进行改良。一是以水压酸。将鱼塘中呈酸性的水,用抽水机抽出,再注入新水,以提高其PH值。如注入新水后,鱼塘中的水的PH值仍在6以下,可继续抽出,继续注入新水。这样,经过反复换水两、三次,可以使塘水有适宜的酸碱度。
Fish pond water pH (PH value), the life and growth of fish are closely related. According to scientific tests, when the pH value of fish ponds is appropriate, the PH value is 7 ~ 7.85, the appetite of fish is increased, the growth is good, the catfish is fast, and the feed coefficient is low. However, when the pH of water in fish ponds is below 6, which is acidic, or if the pH value exceeds 10, the life and growth of fish will be severely affected and even death may occur if the water is alkaline. Therefore, it is necessary to take effective measures to improve the acidic or alkaline water in fish ponds. First, the pressure of acid. The acidic water in the pond, with a pump out, and then injected into the new water to increase its PH value. Such as the injection of new water, fish pond water PH value is still below 6, can continue to withdraw, continue to inject new water. In this way, after repeated replacement of water two or three times, you can make the pond have appropriate pH.