Water body antidote in field of freshwater aquaculture and preparing and using method thereof

The invention discloses a water body antidote in the field of freshwater aquaculture and a preparing and using method thereof. The antidote is prepared by mixing a carrier material, an adsorbent, traditional Chinese herbs, organic acid and a metal-chelator. Under the combined effect of the adsorbent, active ingredients of the traditional Chinese herbs, the organic acid and the metal-chelator, the water body antidote can be used for decolorizing, deodorizing, softening, clarifying, sterilizing and detoxifying a water body, so that the water body can be clarified, foreign odors can be eliminated, dissolved oxygen can be increased, harm of heavy metal ions and pathogenic bacteria to aquatic products can be relieved, the survival rate of young aquatic animals can be improved, and development of the fresh water aquiculture industry can be promoted.