The current environmental problems are much more consistently. Causing the deterioration of the environment caused by human activity. Especially when the wastewater mainly from chemical fertilizer from animal or human waste, causing pollution. It has adopted a hydroponics system to bring water to use. By choosing plants that are short-lived experiment. Considering the growth of plants, which are found in the ratio of nutrient solution to the waste water from the fish first: two plants are growing well. The height of 26.15. Cm blade 27 leaves fresh weight of shoots and roots, 92.75 and 13.24 mg, respectively, and the dry weight of shoots and roots, 4.04 and 0.51 mg, while the quality of the solution in water effluent from the fish alone. the amount of potassium, calcium and magnesium lowest is 23.8, 69.2 and 8.9 mg / L, respectively. In the period of retention at one, three, five and seven day can reduce the amount of solids in the water, NO3-N, NO2-N, the amount of phosphorous and potassium, decreased from 54.7% to 91.0%, 82.9. % to 98.1%, 95.9% to 99.5%, 54.5% to 93.6% and from 99.6% to 99.8% respectively, and the study found that the amount of TDS, COD, TKN, TP and TK reduced from 20.4% to 70.0. %, 52.0% to 79.0%, 12.23% to 50.56%, 8.33% to 33.33% and 0% to 44.44%, respectively, with a treatment BOD up to 97% to increase the amount of DO from 33.33% to 66.67%, it was concluded that system. hydroponics effective treatment and wastewater can also lead to new benefits.
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