04-02-2012, 02:10 PM
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Originally Posted by Byron
By complete darkness I mean total darkness in the tank, which means in the room too, such as one normally has during the night. The fish cannot rest if there is ambient light in the room. If you stand in the room and can see the tank, it is not "dark." And fish need that complete blackness for several hours each day/night.
I happen to have a fish room with my 7 tanks, and the tank lights are on for 8 hours but off the rest of the time. But the fish get about 8 hours of complete darkness. When the daylight occurs in the early morning, say 7 am, the fish wake up and become active, even though the tank light does not come on until 10 am. Similarly, when teh tank light goes off at 6 pm there is (in the summer anyway) still daylight coming in the windows even through closed blinds, and this continues until 10 pm in high summer, and the fish are active until then. They need complete and total darkness at some point.
there is no light on durring the day in my daughter's room. they don't like to play in there so there is no light. she also has the energy saving curtins that block out sun light. so you can't see in the tank. the only way you can see the fish is if you happen to see one that is right on the glass. other then that they are not able to be seen. they do get complete darkness and i do cover the tank with a blanket if we turn on the light to do anything in that room.