The influence of Hermetia illucens larvae as feed on fitness and the agonistk character of Betta fish (Betta sp.)

The behavior of Betta sp. was very much influenced by nutritious food. The method used is descriptive that is measuring weight gain and body length and survival in the control treatment (0%), 25%, 50%, 75% and 100%, then also observed pre fighting behavior which includes opening operculum, tail flix, tail fin and stering and also fighting behavior was observed. The results showed that starting from weight gain, the length of all BSF treatments was higher than the control, then all treatments were also crossed, for Pre fighting operculum opening, tail flixes, tail fin and stering for various treatments BSF was also better than the control so it was also in fights shows all BSF treatment wins against control.