Everything you want to know will be answered in this video.
Betta fish light at night.
You should aim to give your betta 8 12 hours of light and 12 16 hours of dark per day.
However just like their wild cousins captive betta fish do need to sleep at night.
Betta fish typically need 8 to 12 hours of light and 12 to 16 of darkness so make turning off your tank light a pre bedtime habit.
Are you wondering whether you should leave your betta fish light on or off at night.
You ll see this stress play out in feeding habits mostly.
Some bettas won t eat at all when stressed by too much light.
If you notice your betta is acting in an aggressive manner when the light is on then it could be because he is seeing his own reflection.
The easiest way to do that is by turning the tank light on when you get up in the morning and switching it off when you go to bed at night.