NOVELTY - Manufacture of a biocomposition, comprises: (i) preparing micro-organism strains including grade I and grade II propagation of each type of Bacillus thuringiensis (BT) and lactic bacteria; (ii) performing the biomass production fermentation by a two-stage fermentation process for each type of the bacteria; and (iii) generating a composition by mixing the BT biomass and lactic biomass obtained in step (ii) at a proportion of 1:1.    USE - (I) is useful for preventing and restricting luminous bacteria disease in aquaculture (claimed), where the luminous bacteria is Vibrio parahaemolyticus, Vibrio cholerae and Vibrio harveyi and is useful for decomposing surplus organic substances in the farming pond. No biological data given.    ADVANTAGE - (I) is consistent with the conditions of local usage and preservation and decreases environmental pollution in aquaculture.    DETAILED DESCRIPTION - Manufacture of a biocomposition, comprises: (i) preparing micro-organism strains including grade I and grade II propagation of each type of Bacillus thuringiensis (BT) and lactic bacteria, where: the propagation of BT bacteria is carried out by (ai) implanting 10% BT strain into a medium comprising peptone (50 g), sodium chloride (5 g), manganese sulfate (0.1 g), zinc sulfate (0.05 g), ferrous sulfate (0.1 g), calcium carbonate (0.05 g), meat glue (5 g) and water (sufficient for 1 l) and having a pH of 6.5-7; (bi) culturing in shaking condition for 36 hours at a temperature of 300 degrees C; (ci) introducing 10% of the strain into a grade II propagation condition medium comprising peptone (10 g), sodium chloride (5 g), manganese sulfate (0.1 g), zinc sulfate (0.05 g), ferrous sulfate (0.1 g), calcium carbonate (0.05 g), meat extract (250 ml (1 kg meat/ 3 l)) and water (sufficient for 1 l), and (di) performing the grade II culturing in shaking condition at a temperature of 300 degrees C until bio-density in the culture fluid reaches the level of greater than or equal to 108, and completing the propagation and obtaining grade II BT strain fluid; and the propagation of lactic bacteria breed is performed by (aai) implanting 10% Lactic strain into a medium comprising peptone (50 g), yeast glue (10 g), meat glue (5 g), glucose (20 g), dipotassium phosphate (2 g) sodium nitrate (5 g), manganese sulfate (1 g), magnesium sulfate (1 g) and water (sufficient for 1 l), (bbi) culturing in shaking condition for 36 hours at a temperature of 300 degrees C; (cci) introducing 10% of the strain into a grade II propagation condition medium comprising peptone (10 g), yeast glue (10 g), meat extract (250 ml), red sugar (20 g), dipotassium phosphate (2 g) sodium nitrate (5 g), manganese sulfate (1 g) and water (sufficient for 1 l); and (ddi) performing the grade II culturing in shaking condition at a temperature of 300 degrees C until bio-density in the culture fluid reaches the level of greater than or equal to 108, and completing the propagation and obtaining grade II BT strain fluid; (ii) performing the biomass production fermentation by a two-stage fermentation process for each type of bacteria, where the two-stage fermentation process of BT bacteria is performed by (aii) introducing 10% of strain fluid obtained at the step (i) into a first-stage fermentation medium comprising potato extracts (20-30 wt.%), corn powder extracts (10-15 wt.%), meat glue (0.5-0.10 wt.%), chemical mixture (2-3 wt.%) and water (sufficient quantity), (bii) culturing in shaking condition for 36 hours at a temperature of 300 degrees C, (cii) introducing yeast slurry into a second-stage fermentation medium comprising finely minced peat coal (75-72 wt.%), organic nutritious powder (20-25 wt.%), chemical mixture (5-3 wt.%) in a yeast slurry: medium proportion of 1:10, and (dii) culturing in static culture condition at a temperature of 300 degrees C for 36 hours to obtain BT biomass; and the two-stage fermentation process of lactic bacteria is carried out by (aaii) introducing 10% the strain fluid obtained in step (i) into a first-stage fermentation medium comprising potato extracts (20-30 wt.%), corn powder extracts (10-15 wt.%), meat glue (0.5-0.10 wt.%), chemical mixture (2-3 wt.%) and water (sufficient quantity), (bbii) culturing in shaking condition for 36 hours at a temperature of 300 degrees C, (ccii) introducing yeast slurry into a second-stage fermentation medium comprising finely minced peat coal (75-72 wt.%), organic nutritious powder (20-25 wt.%), chemical mixture (5-3 wt.%) and (ddii) culturing in the static culture condition at a temperature of 300 degrees C 45 hours to obtain lactic biomass; and (iii) generating a composition by mixing the BT biomass and lactic biomass obtained in step (ii) at a proportion of 1:1.