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We just set up a ten gallon aquarium, and are fussing on whether to leave the light on all night or2007-11-24 23:41:17

one says turn it off at night (that's why there's a switch there on the hood, duh.).the other says that the light keeps the fish tank water warm. someone who really knows, please tell me.

Answers:

I turn mine off at night to give the fishies a rest from the harsh bright light and also for fear of something going wrong with it and causing a fire or who knows what while I am sleeping. In the wild fish are in the dark at ngiht, so I try to keep it as close to the cycle of the sun. Also prolonged light will make your tank more vulnerable to an algae buildup.

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fish need dark and light turn it off at night.

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To keep the fishtank warm (presuming its a tropical tank) you should have a heater. Turn the light off, Fish need their sleep too!

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Turn it off at night. It is dark at night in the wild, so just follow mother natures lead.

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My Grandmother always kept the lights on in her aquarium and it never bothered the fish,and it made a great nightlight for us kids when we stayed overnight.

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You have to turn the light off at night. If you have goldfish, they do not need the heat. Tropical fish do, so if that is what you have you need to get an aquarium heater. They do not cost much. You need to give all fish "dark time". Also, if you did leave the light on 24 hours, you would have a REAL BIG problem with algae. I plugged my aquarium light into a timer. It was set to go off every night by itself, then turn on in morning. It was convenient. I never worried about forgetting to turn it off or on.

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Turn it off at night when you go to bed and turn it on when you get up. I don't think a light bulb will heat you water very much. It they are a warm water fish, you need a heater for that. Cold water fish are fine at room temperature.

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Fish need a day/night cycle, as do your plants, if you intend to put some in there. If you have a pleco in the tank, you definitely need to give him some nighttime as he is nocturnal.

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I worked with fish for 3 years, turn it off at night or your fish will die!! It heat the tank get a heater!! The heater will have a thermostat in it and will turn off and on when needed. Normally you want to leave the light on for about 8 hours a day, and DO NOT put the tank near a window!! The sun will heat the tank and cuase the temp to vary too much for the fish to handle. A normal tropical tank you want set at 77-78 degrees. Thermostats are a little expensive but WORTH IT! and ask the pet store which one is right for a 10 gallon tank, you dont want on that gets too hot!