Hard to tell exactly what's going on because there's a lot of activity in the video lol but that male is clearly showing off, this is the way they behave before breeding... but the fact that he's chasing the females away makes me think he has reached sexual maturity and is just being territorial.
What size is that tank? I see several jack dempsey, goldfish, turtles, platies, crayfish? Are you aware of the risks of keeping all these species together?