Everything you want to know will be answered in this video.
Betta fish tank light at night.
It is possible to change the light to a dim blue but the fish will be healthier with a period of pure darkness.
You should aim to give your betta 8 12 hours of light and 12 16 hours of dark per day.
Do betta fish sleep with the light on.
Some bettas won t eat at all when stressed by too much light.
However to make sure he gets the rest he needs you ll want to turn his light off at night.
The main issue with this method is that betta cannot have a light on at night.
Too much sunlight can heat the water of your tank up to uncomfortable or dangerous levels and it can also increase the amount of algae which can cause bacterial infections.
Your betta has a day night cycle it follows just like you.
Betta fish need light to be truly healthy both physically and behaviorally.
You ll see this stress play out in feeding habits mostly.
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.
Just be sure that you provide them with a regular day night cycle so they have a period of dark when they can rest.
For tanks without live plants there is no need to have the light on more than 8 10 hours per day.
Your light source can be artificial or it can be natural as long as you avoid direct sunlight and light that might heat up the aquarium water.
So you must turn out the tank lights overnight to replicate the natural day night cycle that the fish enjoy in the wild.
Additionally excess sunlight and regular light can lead to massive algae blooms.
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.
However just like their wild cousins captive betta fish do need to sleep at night.
Your betta will sleep with the light on and may nap during the day when the light is on.