Tropical Fish Keeping - Aquarium fish care and resources

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le9569 11-18-2006 12:38 AM

Turn off light at night
I do read some articles regarding about let the light on at night. Some others say turn it off completely. I am confused about this.

What's your pick? and may your share your ideas why? Thanks.


Tracy 11-18-2006 12:43 AM

I believe it is best to turn the tank lights off at night. After all, in nature, the sun does go down, and the fish need to rest. Also, too much light may lead to an algae problem.

dprUsh83 11-18-2006 12:46 AM

I too leave my lights off at night. :D

JouteiMike 11-18-2006 01:35 AM

I'd say people say that because in the natural world, the reefs are never completely dark at night. That's why they sell Lunar lights. They are somewhat beneficial too, as they stimulate the fish's natural nocturnal behavior. But I guess it could stress the fish out at first if you suddenly add them.

But I would always turn off the main lights at night. The only light that should be on at night are lunar lights.

usmc121581 11-18-2006 08:19 AM

My actinics are the last to go off and they go off around 11:00pm

le9569 11-18-2006 12:49 PM

Thank you all.

I guess; using lunar light (or moon light) 24/7 would be best.


usmc121581 11-18-2006 04:08 PM

My times:

Actinics 11:00am-11:00pm
Daylights 1:30pm-8:30pm
MH 2:30pm-6:30pm
Luner Lights 2:00am-4:00am

trreherd 11-18-2006 06:10 PM

usmc why do you start your actanics so late in the day? i turn my lights on at the crack of dawn

usmc121581 11-18-2006 07:55 PM

I'm not home until 4:30pm. No one is here till then, so whay have the lights come on that early. When people are here (weekends) the lights come on earlier.

caferacermike 11-18-2006 11:12 PM

I agree about letting the lights come on later. Why have them on and pay for electricity I can't enjoy? Since I work from 7:00am until about 8:00-11:00PM 7 days a week, I prefer to have my lights come on around 3:00pm so that they are in full swing when I get home. That way they are on for about 3 hours before I'm ready for bed. After working 12-15 hours I sure would hate to come home and never see my tank. I also feel that the low levels of natural light filtering in through the windows is a good "warmup" so as not to shock the tank when I have the lighting "instantly" come on.

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