How many hours of light do goldfish need?

Use an automatic mains timer to give your tank between 12 and 16 hours of light each day, and 8 to 12 hours of darkness. Change your bulbs BEFORE they stop emitting light. This will keep your fish on schedule and keep the spectrum of your bulbs from changing too much as the bulb ages.
Takedown request   |   View complete answer on itsafishthing.com


How long should I leave my goldfish light on?

In the wild, goldfish live in cool rivers, lakes and streams where they have regular access to relatively bright light. In captivity, their light cycle should mimic the lighting of their natural environment. Give your goldfish 12 to 13 hours of moderately bright -- but not hot -- light daily.
Takedown request   |   View complete answer on pets.thenest.com


Should I turn off the light in my goldfish tank 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.
Takedown request   |   View complete answer on aquariumgenius.com


Do goldfish like the light on or off?

If your tank is in a poorly lit area – or if you want to grow live plants, such as hornwort – then it would be a good idea to include a light in your aquarium. Remember to switch off your aquarium light at night, as this will replicate natural day/night cycles. Like humans, goldfish prefer to sleep in the dark.
Takedown request   |   View complete answer on thegoldfishtank.com


How many hours of darkness do goldfish need?

Day and Night Cycle

Fish do not have eyelids and rely on total darkness to rest. Without at least 8 hours of darkness, your goldfish can become sleep-deprived. This means you should turn off all lights before you go to bed to ensure your goldfish can rest peacefully.
Takedown request   |   View complete answer on petkeen.com


Goldfish care - Do goldfish need light? - How much light is too much for your goldfish?



Do fish prefer light or 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.
Takedown request   |   View complete answer on aquariumgenius.com


How do you know if 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.
Takedown request   |   View complete answer on aqua-tech.biz


How can you tell if your goldfish is unhappy?

Strange Swimming: When fish are stressed, they often develop odd swimming patterns. 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.
Takedown request   |   View complete answer on hartz.com


Do goldfish need darkness to sleep?

Goldfish don't naturally sleep at night, like people do. They do sleep better when it's dark and quiet, so many fish will sleep at night. If you make noise around a sleeping fish, it will startle awake. Thus, it's best to keep the noise level down when your fish wants to sleep.
Takedown request   |   View complete answer on petmd.com


Do goldfish get lonely?

Goldfish are just not the same as humans – they're not social animals in the same way that we are, and they don't have the same capacity to get bored or long for companionship. In fact, many of the longest living goldfish have been kept alone, with no obvious harm to their well being.
Takedown request   |   View complete answer on thegoldfishtank.com


Is blue light OK for fish at night?

No, you should not keep a blue light or any other colored light on in your fish tank through the night. Unless you have nocturnal fish, they depend on light cycles to maintain their sleep cycle. Leaving a light on at night will disturb this cycle and result in sleep-deprived and stressed fish.
Takedown request   |   View complete answer on petsgal.com


Do fish like light in their tank?

While fish do need light, which can be sunlight, fish in your aquarium do not need direct sunlight. Placing your aquarium in direct sunlight is something you want to avoid for good reasons. Direct sunlight is so strong and contains a lot of energy, which will be harnessed by algae to grow like crazy.
Takedown request   |   View complete answer on aquariumgenius.com


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.
Takedown request   |   View complete answer on blogs.unimelb.edu.au


Do goldfish like lights?

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.
Takedown request   |   View complete answer on itsafishthing.com


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. Besides, just as we do fish also require darkness to sleep.
Takedown request   |   View complete answer on aquagoodness.com


Does TV light bother fish?

I'm new to saltwater, but my experience with freshwater would suggest that the fish will definitely notice the light and sound from the tv, but there shouldn't be any issue as long as they can still find some sort of darker place in the tank, like a cave or the far edge where it is darker.
Takedown request   |   View complete answer on reefcentral.com


How many flakes 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.
Takedown request   |   View complete answer on kb.rspca.org.au


Do goldfish swim all the time?

First of all, it's normal to see your goldfish swim, play and explore during the day and sleep at night. Do fish sleep? Yes, but because they have no eyelids, they can't close their eyes like we do. The goldfish behavior can be influenced by the environment, tank mates and also by its owner.
Takedown request   |   View complete answer on goldfish2care4.com


Do goldfish need a pump in the tank?

As it has been stated, goldfish do not always require an air pump to survive. It can do well in a tank that is well oxygenated for as long as it normally can. As long as there is enough surface movement that translates to oxygen, then the goldfish can live just fine without an air pump.
Takedown request   |   View complete answer on fishtankmaster.com


How do I play with my goldfish?

You can actually interact with your goldfish by teaching them to swim through hoops and push balls around. You can also feed them with your fingers. Playing with your goldfish is a fun and engaging way to enjoy owning a pet fish.
Takedown request   |   View complete answer on wikihow.com


Do goldfish get bored in tanks?

Fish-keepers sometimes see their pets 'glass surfing' – swimming repeatedly up and down the glass of the tank. This could be the aquatic equivalent of the pacing of a captive tiger that's bored from a lack of stimulation. But the fish could also be stressed from an overcrowded or unfamiliar tank.
Takedown request   |   View complete answer on sciencefocus.com


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.
Takedown request   |   View complete answer on aquagoodness.com


How do you know if your goldfish is a boy or girl?

The anal fin in males is closer to the tail compared to females. Male goldfish tend to have more flowing fins and tails compared to females. Male goldfish tend to have a slightly smaller and skinnier body compared to females. Females will have a larger and rounder body and their abdomen can appear soft.
Takedown request   |   View complete answer on thegoldfishtank.com


Do goldfish hear you talking to them?

Interestingly, they can listen to you. Just not in the way you think. You may have found goldfish responding to you tapping on the glass to get their attention. They can hear using several different sensory organs, mainly their internal ears and lateral line.
Takedown request   |   View complete answer on itsafishthing.com


Why goldfish spit out food?

Fish need to flex their gills while eating. Gill parasites can disturb this motion and he will spit out his food. Other outward signs such as a slimy coat or spots may accompany parasites on the fish.
Takedown request   |   View complete answer on pets.thenest.com
Previous question
Can dogs have pumpkin Munchkins?