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Electro-coagulation describing strategy has been utilized to evacuate malachite green - a dye utilized in aquaculture as antimicrobial agents. There was an effect of six operating parameters like initial concentration of dye, pH, current density, electrode spacing, and amount of electrolyte on the effectiveness of color removal that has been inspected by using aluminum electrodes. It was found that the optimum measurement dosage for the malachite green aqueous solution at initial concentration 50 mg/l of dye concentration, the best current density is 87.5 A/m2, the optimum pH is 8.0, the optimum NaCl concentration as an electrolyte is 0.7 g/l, the optimum spacing between Aluminum electrodes is 1cm where can be observed that decreasing in dye removal when increasing in spacing at 70 min. Thus, through the results gotten, treating the Malachite Green dye in this strategy is considered efficient and great treatment. [ABSTRACT FROM AUTHOR]