This study aims to look at how chromium-organic fish feed affects the growth performance of the grouper fish and its deposition on the flesh of the grouper fish. According to experts, organic chromium affects the performance of the hormone insulin which plays a role in carbohydrate metabolism. Fish maintenance has been carried out in the Brackish Aquaculture Fisheries Center (BPBAP) Situbondo, East Java. The content test on the grouper bush meat was conducted at the Central Laboratory of Padjadjaran University, Jatinangor. The Situbondo Research Institute for Sea Fish Cultivation in January 2020-March 2020, this research was conducted experimentally using the Completely Randomized Design (RAL) research method. This study consisted of four different chromium dosage treatments and each treatment was repeated three times. There are 15 fish used in each aquarium with 42 days of maintenance time. The treatments used are as follows: Feed with the addition of chromium-yeast 0.0 mg / kg (control = A). Feed with the addition of chromium-yeast 3.1 mg/kg (B). Feed with the addition of chromium-yeast 3.9 mg/kg (C). The addition of chromium-yeast by 3.9 mg/kg of feed produced a survival rate (100%), daily growth rate (0.31 g/day), and the best utilization of feed (68.65%) among all treatments.