The Effect of Addition Boster Manstap to Density Cell of Chlorella sp

This research was conducted in August – September 2020, at the Quality of Aquaculture Laboratory, Fisheries and Marine Faculty, Riau University. The purposed this study to see effect addition booster manstap density cell Chlorella sp. best dose for cultures uses a completely randomized design (CRD) with one factor, four treatments, three replications. treatment use different doses (BMD), namely P0 (control), P1 (25 ppm BMD), P2 (30 BMD) P3 (35 BMD). result showed is 1176,67 x 104 cells/ml, specific growth rate 0,25/day highest peak occurred on day 6. quality water value time temperature 29-330C, pH 7-8,3, DO 6,6-7,9 ppm, nitrat 1,5-12,7 mg/L dan posfat 1,70-5,91 mg/L. good sp