aggression question

[TwelveL16]

Every night at 6 my lights go out. At this time my Chevron get mad as heck. His face turns white and he starts chasing everything. Whats the significance of the lights going out and this be the ONLY time he shows aggression towards the other fish. Just Wondering, Thanks

 

[Joeganja]

How big is your tank?

 

[TwelveL16]

How big is your tank?

300g

 

[Joeganja]

Only tang?

 

[TwelveL16]

Yellow in there too that's it

 

[Joeganja]

Yellow in there too that's it

Usually kole tangs are peaceful and keep to themselves.

 

[eatbreakfast]

Dusk and dawn are pretty intense times on the reef. Fish are finding their spots for the night, most breeding behavior and displays occur around this time. And predators are quite abundant.

He is ensuring that he will get prime hiding spots and will hopefully impress any potential mates that might be in the area.