Are fish scared of dark?

Fish don't like the dark because when there is no light to see, they dart around the tank, colliding with the walls, ornaments and can even become tangled in the plants. Fish need light to determine whether it is night or day, and they're scared of the sudden switch from darkness to light.
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Is it OK for fish to be in the dark?

Fish do not need light at night. A period of darkness is necessary for the fish to sleep. Also, leaving the lights on all night could cause algae to rapidly grow and take over your aquarium.
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What are fish scared of?

Fish are scared of their own reflection and try to fight themselves when they look at a mirror, a new study has revealed. They become even more frightened when they see their reflection making the same moves as them and appearing to fight back, found researchers.
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Do fish need the light on?

Unlike plants, fish do not have a biological need for light, so they require less. Natural sunlight at noon has a rating of 5500 Kelvin. How long should I keep my aquarium lights on? To provide animals and plants the lighting they need, 10 to 12 hours a day is sufficient.
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What happens if you leave a fish in the dark?

If you keep your fish in the dark all the time, the chromatophores won't produce more pigment, so the fish's color will start to fade as the chromatophores that already have color naturally die, while the new cells aren't stimulated to produce pigment.
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Overcoming A Phobia of Fish I The Speakmans



Do fish sleep if lights are on?

Fish will sleep and having a slow increase in light is better than a sudden switch. Some species will like to “sleep in” and hide out in their caves for awhile until their eyes adjust.
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Do fish stop moving at night?

While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.
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Are fish bothered by LED lights?

No! LED lights won't harm your fish or hurt their eyes. In fact, your fish need lights in their tank to remain healthy and thriving.
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Are LED lights good for fish?

Are LED's the best kind of lighting for aquariums? LED lighting has many advantages over other types of lighting for aquarium use. From dramatic energy savings, providing amazing color and shimmer effects, to long lamp life - LED lighting is a very viable alternative to status quo aquarium lights.
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Can fish live in a dark room?

Fish can live in the dark completely however they will potentially have no source of food at most Algae cannot reproduce without sunlight.
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Can fish hear you talk?

Yes, fish can hear you talk!

Sounds that are created above water typically do not carry enough force to penetrate the surface tension of the water, so talking on the boat or loud noise may not affect fish as much as your fellow anglers may want you to think. Your voice is unlikely to spook or scare fish away.
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Can fishes get angry?

You probably already know that if your aquarium environment does not live up to the standards of your fish they are unlikely to thrive. You may be surprised to learn, however, that an environment that is too cramped or dull can actually cause your fish to become angry.
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Does noise scare away fish?

Yes and no. Sounds above water, such as loud talking or music, do not penetrate water very well and rarely scare fish. However, sounds that transmit vibrations directly through water, like dropping pliers on the bottom of a boat, stomping on a dock or a running boat motor, can temporarily spook nearby fish.
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Can fish see humans?

Researchers studying archerfish found the fish can tell a familiar human face from dozens of new faces with surprising accuracy. This is a big, big deal. It's the first time fish have demonstrated this ability.
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How do you tell if a fish is stressed?

If your fish is swimming frantically without going anywhere, crashing at the bottom of his tank, rubbing himself on gravel or rocks, or locking his fins at his side, he may be experiencing significant stress. Talk to your veterinarian about treatment and look into what may be causing the stress and alleviating it.
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Do lights scare fish at night?

Obviously, the light goes through the water and when fish see a sudden bright light coming from the surface, they're likely to get spooked. If you're on the shoreline, you can avoid this mistake by turning your back to the water if you need to turn on your lamp to tie on a new lure or check your bait.
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What color calms fish?

Cool color lights like purple, blue, red, and green are the best choices for betta fish. They tend to give the fish the sensation of their natural habitat as well as keep them calm and relaxed.
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What color light makes fish happy?

What color light do fish like best? Green Light and White Light are the most common colors used to attract fish to Boats, Docks and Piers because they are brighter and will attract fish from a greater distance.
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What color LED do fish like?

Nothing brings out the vivid colors and enhances your tank like a full, rich RGB (Red,Green,Blue) spectrum of light. It not only makes your fish pop in color, it also won't promote algae growth. Simply adjust Red, Green and Blue to the same level (we recommend 100%).
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Can I leave my aquarium light on 24 7?

Overall, you should not keep your aquarium lights on at night. Keeping aquarium lights on during the night can affect fish negatively. And it will also cause algae growth in your aquarium. You should keep lights on anywhere between 8 to 12 hours every day depending on your setup.
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How do you not overfeed fish?

Determining the Right Amount of Food

A good rule of thumb is to give your fish no more food than they will consume in less than five minutes. When in doubt, underfeed. You can always give them another small feeding if necessary. Also, keep in mind that the type of food is just as important as the amount.
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Are fish sensitive to sound?

Fish is extremely sensitive to low-frequency vibrations, below some 10s of Herz. If the sound source is sufficiently intense, fish usually respond by swimming away from the source. The reason for this is probably that low frequency sounds usually indicates an approaching predator.
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Do fishes get thirsty?

As well as getting water through osmosis, saltwater fish need to purposefully drink water in order to get enough into their systems. Where their freshwater counterparts direct all of the water that comes into their mouths out through their gills, saltwater fish direct some into their digestive tract.
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Do fish have feelings?

Nerves, brain structure, brain chemistry and behaviour – all evidence indicates that, to varying degrees, fish can feel pain, fear and psychological stress.
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Do dead fish float or sink?

Most fish are slightly denser than water, so sink immediately after death. However, like a drowned human, they become more buoyant over time as bacterial decomposition produces gases inside the body. Usually, enough gas builds up in body cavities to make the corpse float, like an inflated balloon.
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