Night lights? Too bright?

[Leah]

My anthia's are like that if any small source of light is on they come out right away. May
be because often I will throw some food in when it is semi dark. But all my hippo's hide
till the last minute. The room has to be light or some light in the tank. I think they need
darkness too.

[Pier Pressure]

I have moonlights that I stopped using because none of the fish would sleep in the "spotlights" so to speak. I would cover the tank as fishes seem to prefer to sleep in total darkness.

[Tom R]

This is a very good question.

I have my moon lights on a cycle that turns them off at 12:00 till 8:30 am giving the tank total darkness. This totally reduces the fish activity.

However in real life the shallow waters on a full moon lit night are not dark. I am sure that in the shallow waters it must be almost daylight. As fish are always on the hunt for food, I would think that non nocturnal fish would use a bright moon lit night to find an extra meal.

[High tide]

Originally Posted by Tom R

This is a very good question.

I have my moon lights on a cycle that turns them off at 12:00 till 8:30 am giving the tank total darkness. This totally reduces the fish activity.

However in real life the shallow waters on a full moon lit night are not dark. I am sure that in the shallow waters it must be almost daylight. As fish are always on the hunt for food, I would think that non nocturnal fish would use a bright moon lit night to find an extra meal.

I agree with this, the moon provides a fair amount of light. However, in your case I'd say the light is more disturbing because it is coming from an unnatural angle.

[banditpowdercoat]

I think the Moonligts help Nocturnals too. My Banggai is alot more active 45 min after lights out. Moonlights are on, all other fish have settled down and he then comes out foraging for food.