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Yes, fish do need dark. They depend on the cycle of light and dark to determine spawning and migration times. During the longer days of summer and the shorter days of winter they spend time eating. As the days lengthen for spring, some fish like northern pike, muskellunge, and steelhead travel to spawning grounds. For other fish like brook trout and smallmouth bass the shortening days at the end of summer signal spawning time.
Another reason for dark is that even fish need rest. Food is easy to find while it's light out, so they are fairly active in the day. As dark falls, feeding activity slows. Of course, a full moon on a clear summer night, doesn't slow the walleyes down; ask any determined fisherman.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoActually fish don't sleep they technically rest....
Wiki User
∙ 14y agoThe majority of fish do not prefer the dark.
Wiki User
∙ 14y agoYes, community fish need both a light and dark cycle, in order for them to sleep and behave normally.
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Do planaria prefer light or dark environments?
Planaria prefer dark environments
Does my fish need light to survive or become healthier?
Most fish prefer to live in a well-lit tank. Lighting enhances the colours, and also allows live plants to grow, and fish prefer living in an environment with live plants. Fish constantly kept in the dark will probably be stressed and their eyesight may be affected.
Can fish see in the dark?
It really depends on the breed of shark, some prefer the deep depts and others prefer the more shallower waters
Does the sea star prefer the light or the dark?
dark
Do isopods prefer light or dark environments?
they like dark
Do snails prefer light or dark conditions?
Dark and damp
Do fish prefer morning or night?
Some fish are nocturnal, some fish aren't, but some fish don't have a sense of day and night because they live so far down, it is always pitch black and dark.
Do crabs like dark areas?
To be honest crab prefer it dim,dark
Does a Blue Morpho Butterfly prefer light or dark places?
They would prefer light.
Does tarantulas prefer light or dark places?
They prefer darker places. Many tarantula species are found in densely forested areas, which are dark, humid places.
Why do pill bugs prefer dark?
the prefer moist environments which is in the dirt. that is why they are usually buried underneath there
Do monster fish like the dark or light?
the dark
