Few studies have been performed in biodiesel production from fish oil; however, according studies found [9–13], common conditions include: (i) NaOH (1 wt.%) or KOH (0.5 wt.%) as catalysts; (ii) 6:1 to 9:1 methanol to oil molar ratio; (iii) reaction temperature between 50 and 60 C; (iv) reaction time between 30 and 60 min; and, (v) stirring from 600 to 6000 rpm.