Do goldfish need a light?

Goldfish do not rely on lighting as plants do, but it is still important to give them a day and night cycle. This will help their eye development and provide them with the light requirements that they would receive in the wild.
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Do goldfish need light in their tank?

Yes, goldfish need light and they also need nightly periods of darkness. What is this? Using lights to illuminate your tank and simulate a day / night cycle is beneficial to your goldfish, the overall health of your tank and is an important aspect of successful goldfish care.
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Should I turn my goldfish light off at night?

Aquarium fish do not need light and it is best that you turn it off during the night. Leaving the light on can cause stress to fish as they need a period of darkness to sleep. Too much light will cause algae to rapidly grow and make your tank look dirty. So the short answer is no, do not leave your lights on.
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Do goldfish like light or darkness?

Goldfish like to sleep in the dark, so you should keep the lights of your aquariums off during the night. You should not keep the lights of your aquarium on for more than 12 hours.
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Do goldfish need complete darkness to sleep?

Goldfish need at least 8 to 12 hours of complete darkness to sleep, and anything less will start to show negative effects on their health over time.
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Goldfish care - Do goldfish need light? - How much light is too much for your goldfish?



How can I tell if my goldfish is happy?

Your fish are happy and healthy when they:
  1. Swim actively throughout the entire tank, not just hanging out or laying at the bottom, floating near the top or hiding behind plants and ornaments.
  2. Eat regularly and swim to the surface quickly at feeding time.
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Do goldfish like LED light?

Aquarium light types include fluorescent, LED, or UV lighting. All of these are suitable for use with goldfish and work well as a permanent lighting system. You want a light that has more of an orange glow than one that has a bright white output as this is gentler on their eyes.
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Is it true that if you keep a goldfish in a dark room it will turn white?

goldfish will lose its color if kept in the dark because the pigment production of this fish depends on light. When deprived of light, the goldfish's skin stops producing pigment. Cells called chromatophores produce these pigments, which reflect light and produce color.
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Do goldfish need an air pump?

Yes, Goldfish needs air. Though it's commonly known that goldfish need water to survive, they're also dependent on fresh air. That's because a goldfish's internal organs rely on oxygen to function properly. Just like humans, goldfish have circulatory systems that help carry oxygen throughout the body.
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Do fish like lights in their tank?

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 color light is best for goldfish?

White daytime LED lights are the best choose for fancy goldfish. They last for years before fading. They are also the least likely to grow algae and bacterial blooms that could cloud the water. They are typically the most energy efficient and will cost less to power.
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Is it OK to keep fish in the dark?

All fish need periods of darkness, and turning the lights off at night will help you mimic your pet's natural environment.
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Should I turn off the bubbles in my fish tank at night?

Generally, fish should be able to sleep without being bothered by bubbles or water agitation created by air pumps. Besides, if you want, you can turn off your air pump at night, but make sure the filter continues to run, so it fulfills the required aeration in the aquarium.
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Can I leave my aquarium light on 24 7?

Can I leave my aquarium light on 24/7? You should never keep your aquarium lights on for 24/7. There are are several reasons you should not do so but the most important is it will cause algae growth in your tank. And you can spend literally weeks if not months to clean out algae from your aquarium.
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Do goldfish need heaters?

Conclusion. In summary: Goldfish don't need heaters – most of the time. If the conditions of your home or outdoor environment get too cold for either fancy or common Goldfish, you may need a heater. Remember that Goldfish are endothermic, meaning their metabolism is controlled by the external environment.
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What do goldfish like in their tank?

Goldfish like plants, variety in their food, a large, clean tank with a stress-free environment, lots of oxygen in their tank, nice cold soft water, other Goldfish as mates and some decorations in their tank.
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What size tank do I need for 2 goldfish?

Based on the rules above, the goldfish tank size we recommend for two goldfish is: 42 gallons for two Common goldfish. That's 30 gallons for the first fish and 12 additional gallons for the second fish.
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Can goldfish live in tap water?

Goldfish cannot live in untreated tap water

Goldfish can only live in tap water when it has been properly treated to remove harmful chemicals. What is this? Tap water contains chemicals that will kill all of the 'good bacteria' in your tank.
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Do goldfish need gravel?

Goldfish Aquarium Gravel Substrate. A goldfish aquarium doesn't need a gravel substrate but the goldfish in that goldfish aquarium surely would appreciate it. Not only is a gravel substrate aesthetically pleasing, it creates a place for beneficial nitrifying bacteria to grow.
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Do goldfish recognize their owners?

Pet goldfish can distinguish between humans, and often recognise the human that regularly feeds them. Pet goldfish can also seem quite scared of new people, but become more comfortable with their owners over time as they realise they aren't a threat.
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Why did my goldfish turn white?

Did you know that goldfish have pigment in their skin? This pigment can react to UV light in some fish. So, your goldfish could turn white due to both a lack of sunlight or too much sunlight. In the case of too much light, fish usually respond to the dramatic change.
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Can freshwater fish be in dark?

Among the many odd questions aquarists ask is whether aquarium fish can see in the dark. Well, the straight and simple answer is NO!
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What happens if a goldfish is kept 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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How often should I feed my goldfish?

Feed 2-3 times daily. It is important to avoid overfeeding goldfish as this can cause indigestion and/or contaminate the tank. In terms of the amount to feed, a good rule of thumb is to only feed an amount that the goldfish can consume in under two minutes or only feed as much as the size of the goldfish's eye.
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Do goldfish like cold water?

However, common-type goldfish can thrive in water as cool as 62˚F or so, and usually do best in water that is 72˚F or below. Fancy goldfish cannot tolerate the same cool temperatures that common goldfish can, so they usually prefer 68˚F as the temperature minimum, but are often happiest in water from 70-76˚F.
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