What helps regulate that is buying a timer at your local hardware store that does this automatically.
Do you turn betta fish light off at night.
You can keep female betta together but you need large tank and a decent group of fish 5 to spead out any aggression.
Now betta will survive the night with the filter off but you are harming the biological filter itself.
Here is a picture of some.
Now you should have a solid understanding of whether to leave a betta fish light on or off at night.
Simply set the timer to turn the light off at the same time each evening and to turn it back on the next day.
And yes you should turn your lights off on a regular schedule.
And of course the answer is off.
Consistent light cycles that replicate daylight and nighttime reduce stress and mimic natural environments.
If your betta fish has too much light it can become overly stimulated and stressed.
Always best to leave it running.
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.
If you don t want to go this route you can use alarms to remind you each day as to when to turn the lights on or off.
Light timers are the easiest most effective way to regulate your fish s night day cycle.
Also a cheap appliance timer may do the trick if your bulbs don t eat up too much power.
And the most important things you need to remember are.
However just like their wild cousins captive betta fish do need to sleep at night.
Some bettas won t eat at all when stressed by too much light.
One becomes dominannt and keeps picking on the weaker one until it dies.
If you don t want to use light timers set an alarm and turn the lights on and off at the same time each day.
So you must turn out the tank lights overnight to replicate the natural day night cycle that the fish enjoy in the wild.
Too much sunlight can overstimulate your betta causing stress and agitation as well as possibly causing feeding problems.
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.
These light timers are probably the most effective and easiest manner of replicating your fish s night and day cycle.
As for the filter.
Basically it plugs into the wall and then plugs into your aquarium light and it switches the light off at your certain set time everyday.