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Old 08-21-2012, 02:28 AM   #1
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Turning Lights out suddenly

I have my aquarium light on a timer and I was wondering if the aquarium suddenly going pitch dark at night will stress out the fish too much. Same with it coming on in the morning
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Old 08-21-2012, 03:20 AM   #2
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Well fish don't have eyelids so a sudden change in light certainly shocks them.
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Old 08-21-2012, 03:52 AM   #3
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Ya it might but theres no other way
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Old 08-21-2012, 12:17 PM   #4
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As long as there is some ambient light, be it from room lamps or some sunlight coming into the room, it's not as much of a shock. But yes, if you go from really dark to lights on, the fish can stress easily.
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