Do Betta fish like the dark at night?

Yes, betta fish prefer darkness at night. They are native to the shallow, slow-moving waters of Southeast Asia, where they've evolved to thrive in natural light cycles that include periods of darkness.

When exposed to constant light, bettas can become stressed, which can lead to health problems and a shorter lifespan. Darkness allows them to rest, reduce their activity level, and conserve energy.

To ensure that your betta fish is getting enough darkness, turn off the aquarium light at night or use a timer to control the light cycle. Aim for 8-12 hours of darkness per day.