This study aims to determine the effect of beef rumen bokashi added with different doses of chicken manure on the abundance of Chlorella sp. The method used was a Completely Randomized Design (CRD) method with 5 treatments and 3 replications, namely treatment P0 = control (2 grams of beef rumen bokashi without the addition of chicken manure), P1 = 2 grams of beef rumen bokashi + 2.5 grams of ch…