Composite microecological preparation for increasing transparency of culture water body and application of preparation

The invention provides a composite microecological preparation for increasing transparency of a culture water body and an application of the preparation. The microecological preparation is formed by compounding different strains and carriers, the content of bacillus amyloliquefaciens is not lower than 5*10 CFU/g, the content of bacillus simplex is not lower than 1*10 CFU/g, and the content of lactobacillus plantarum is not lower than 2*10 CFU/g. The composite microecological preparation has the higher decomposition capacity and can effectively decompose organic matters such as residual feed, feces and the like in a pond, significantly increase the transparency of the water body, stabilize the pH of the water body, adjust the algal phase equilibrium and purity the water body.