In have a question for other Frontosa keepers about their exposure to light in the wild.
I know they come from deep in the Lake. What is the general amount of light they are used to?
As the days grow shorter in my neck of the woods, I realize that the basement room my tank is in stays fairly dark during the day. Unless I happen to be around, my tank light is only set to be on for ~1 hour a day.
Should I be leaving a light in the room on for them during the daytime?
Can you define “fairly dark”? If the room gets any light through any kind of window, then they’ll be fine mate. My tanks are in our basement with a walk out. The tanks are about 30’ opposite the door that has a small window in it. When I go down in the morning the room has enough ambient light for all the fish to be awake and swimming around already. Fish tank lights are really for the owners viewing, not the fishes benefit, unless of course you have plants
You just need enough light to make the fish able to differentiate between day and night. If your room has enough light during the day for you to walk through it without problems, and it's darker than this at night, it should be enough for the fish to know it's daytime.